hello everyone this is the hefty a square mathematics full review i took the hesi twice and i passed both times and also have experience taking the kaplan and the cheese exam if you're taking the teas or the kaplan you should still follow along with this review math is a universal language and i do recall most of this information is the same same on the kaplan the t's and the hessy so still follow along with that being said we're going to go ahead and get started but before we do i'm going to ask you guys a big big huge favor please subscribe to the channel it really helps me out a lot i put a lot of time and effort into these videos i've noticed i'm getting a lot of views but not a lot of subscribers so please subscribe it doesn't cost you anything like the video comment down below and share this video with another student that you know may be taking a pre-nursing exam with that being said let's get started on the hesi you will be provided a scratch paper and pencil as well as a digital calculator you will be given 50 minutes to complete 55 questions you will be tested on basic math skills such as fractions subtraction addition division multiplication problems decimal and roman numerals measurements percentages conversions military time ratios and proportions word problems and algebra so guys i just want to clear up like it's important to know the vocabulary not because you would be tested on each word but it's important to know because when you're reading these math problems you will see these terms and it's important to know because you need to know what you're actually looking for what is the problem asking you to do and also how you can find the correct answer so you won't be tested on what a fraction bar is or anything like that no it's good to be familiar with the vocabulary so that you can choose the right answer that's being asked so an exponent is a number or a symbol placed above or after a symbol indicating the number of times to multiply for an example 25 to the second power so you have 25 times 25 that 2 is the exponent an expression is a mathematical sentence containing constants and variables so an example would be 3x minus 4. so a factor is a number that divides evenly into another number you may have a question that asks you what is the factor of such and substance charge and such and shots so it's important to know what it means and the one is asking for a fraction bar is the line between the numerator and the denominator we know that the numerator is the number that's on top and the denominator is the one at the bottom so that fraction board divides them improper fraction is where the numerator is greater than or equal to the denominator for an example you will have a problem that says 25 over 5 that's improper fraction because the numerator is greater than the denominator next we have least common denominator also known as the lcd this is the smallest multiple that two numbers share for an example three and five three multiples of three will be three six nine twelve fifteen let's stop there now we have multiples of five five ten fifteen we can stop there as you notice they both have 15 in common and that 15 would be the lcd so a common denominator is when two or more fractions have the same denominator it's like a like so an example would be like one over two and two over two the common denominators so a constant is a number that cannot change is constant a denominator is the number that is in the bottom of the fraction that is in green the bottom number and a digit is any number 0 to 9. so 10 is not a digit so a dividend is a number being divided it is underlined and read guys so that would be uh if we have 9 over 9 divided by 27 27 will be our dividend and then we have a divisor which is the number by which the dividend is divided by so that would be our 9 in this scenario which is circled in green so the last of the definitions we have a remainder the remainder is a portion of the dividend that is not evenly dis divisible by the divisor so in this scenario here we have 5 divided by 128 our 3 will be the remainder that's the number that's left over when you're dividing a terminating denominator sorry decimal is a decimal that is not continuous and then we have a variable which is a letter representing an unknown quality we have an example 3x minus 1 and in this case an x is the variable and also uh sum means total okay guys so for the math section it's pretty simple you want to keep in mind you will be given a calculator so you don't have to do these problems on hand so um yeah let's keep that in mind okay you can do them on hand if you want to just to make sure that you have actually got the correct answer but i use a calculator for simple problems like this in the scratch paper for harder complicated problems so the calculator that you will be given on the test will be like a basic calculator very similar to your phone or like a dollar calculator you may find at the family dollar or something like that so i'll just go ahead and show you guys how i would plug these numbers in um in the calculator so for an example if i had 12 minus 8.99 you want to go ahead and put it in 12 minus 8.99 you want to make sure you use a decimal i didn't use it as time 12 minus 8.99 is going to give you 3.01 and that's going to be your answer so when you doing the decimals just be extra careful that you're actually using the decimal placements if not you can just do it the old-fashioned way i'm going to show you guys how to do it though fashion way too but i'm just showing you how how to do it the quicker way um and also knowing your multiplication and your division numbers from grade school would actually help because you can just look at a problem like oh five you know you could just it just jumped out at you and then we have 23 times five it's going to give you 115 you can just plug that into the calculator um 23 times 5. it's going to give you 115 so that's basically it um for this question here 6 divided by 672 you would put 672 first divided by 6 112 and then if you don't remember to do the bigger number first with these types of problems always eliminate uh the answers by doing opposite operation so this is a division problem i would just do a 112 just go through all the options and multiply by six and whatever whatever um number i would get i would select that particular number and i hope that makes sense to you guys so if i didn't know the answer or know how to find the answer especially with the ratio and the proportions if i was just stuck i will go through my options and calculate these numbers with this number here to find this number here that's what i would do if i didn't have a calculator or didn't have time or this didn't feel like doing it the long way so anyway let's go into some other problems all right so i'm going to do 6 divided by 672 the long way by hand and i'm going to go ahead and erase this stuff right here so i can have one this is something that i learned i made an acronym for it's like doing long division where i'm in algebra or whereas i'm taking statistics so i write down the steps let's divide multiply subtract and bring down dm sb that's what i do to help me remember so let's get started let's do 6 divided by 6 that's going to give us 1 and then we want to multiply next and then 1 times 6 is going to give us 6. the next step after we multiply would be subtract so subtract 6 from 6 is going to give us 0 and then we start over again by bringing down the next number valuable we have 7 so do it again 7 goes into 6 how many times one time put that one there next step after we uh divide we multiply so one times six is going to give us six and as we multiply we have to subtract subtract seven from six is going to give us one so next we bring down bring down what that two that's going to give us 12 and then we have 12 our next step is to divide once we start off right now divide 12 divided by 6 is going to give us 2 and then 2 times 6 is going to give us 12 will give us 12 again and that's going to give us a remainder of zero and there's nothing else to bring down so if the cycle is there and that gives us 112. that's the wrong way of doing it but like i said you don't have to do it that way because we have a calculator and we're pushed for time here we have some more basic subtraction and addition problems so once again you can plug this into the calculator but if for some strange reason you don't have access to a calculator you can just go ahead and do the old-fashioned way so as we see we have 2.61 plus 3.1 i'm gonna go ahead and line this up a little bit better because me personally i need to see where everything is going so we just basically add like a regular problem six plus one seven we got three plus two it's going to give us five so our answer is 571 next we have 12 point 37 plus 5 point zero zero you just basically do regular addition that's going to give us what 517 1737 next we have 3.41 times 7 that's going to give us seven times one is seven seven times four is twenty eight and seven times three is twenty one plus two is going to give us twenty three twenty three point eighty seven is the answer and then now we have zero point zero zero two times three point four and of course they are lined up so i won't get confused i'll bring down that to four times two is going to give us eight four times zero is going to give us zero four times zero is going to give us zero and four times zero again it's going to give us zero now we have three times six i mean three times two is going to give us six make sure we have to skip that space there it's important three times zero is zero three times zero is zero and three times zero is zero so now we just add this up it's going to leave us with 8 68 and one two three zeros in front of it so to calculate where you're going to place it you just count the placements behind the decimals one two three four placements so basically we start here counting and we move it does move from one two three four so the answer is going to be zero point zero zero sixty eight raw main normals if you guys remember what's on the board before you you'll be fine for the test i represents 1 v represents 5 x represents 10 l represents 50 m represents a thousand c represents a hundred and d represents 500. as you can see i'm writing five and two so five plus two is seven now i'm going to do another problem where i'm going to write one plus five now really in roman numerals if you have a smaller number leading you need to subtract so 1 minus 5 is going to give us 4. so anytime you have a smaller number leading before a smaller number before a bigger number you are to subtract another example would be cd you would subtract 100 from 500 and that's basically how you write 400 cd we have another example of that i'm writing i which is 1 and x which is 10. so that's 1 minus 10 which will give us 9. so when writing larger roman numerals there is a vicular or a horizontal line that is written above it so it's pretty simple so you guys remember what m stood for [Music] and uh and if you guessed the thousands you're correct but with the victim or the horizontal bar on above it it indicates a million now we have v what is v v is five what would the speculum one up above it it is five thousand y'all see the bathroom we have x which is ten 10 000 when that bar is above it next we have l l is 50 if you guessed you guessed right what our victim that little horizontal bar is going to be fifty thousand c yeah c for century which is a hundred put our horizontal bar above it or line it would be a hundred thousand d stands for five hundred when i bar above it is five hundred thousand all right so let's do some sample problems first we have m m x and two so the first thing you wanna do is you gotta know what m is so m is a thousand it's gonna be plus a thousand plus x which is ten plus two and that's going to give you ten ten thousand plus i mean one thousand plus one thousand is two thousand and twelve all right so next we have l x two and l is fifty and x is ten and this will be 2. so 50 plus 10 plus 20 i'm sorry why did you put 20 there i don't know but 50 plus 10 plus 2 is 62. so next we have x c i or i don't know but the x is 10 c is what a hundred i don't know why i i'm so because the 10 is before the 100 and 100 is more you have to subtract so that's going to give you 10 minus 100 is 90 plus 1 is going to give you 91. that's going to be the final answer i hope you don't understand if i don't understand it just leave a comment down below and i'll try to explain it to you the best way i possibly can so these are the problems that you will probably see most likely on the hesi it won't give you something simple i think i saw something similar to this one but they won't give you something that's like really simple they're going to give you the hardest one and it's probably like i remember seeing one question i feel like one or two questions on the head c so we have to know what d is d means 500 10 20 30. i'm just gonna go ahead and calculate that up just for the sake of space so we got 30 here then we got five plus five plus three and you just basically add that up so 538 538 so we have mmm dc xxi all right same way we do any other problem don't be intimidated just because it's long you just basically need to write it out m is a thousand plus a thousand plus a thousand [Music] i should have just wrote three let me just write three thousand just in this case so i know this collectively is 3 000. all right and our d is going to be 500 and c is a hundred two x's together would be 220 and then we have that one so we just added together three thousand plus five hundred plus a hundred plus twenty plus one that's going to give us which three thousand six hundred and twenty one that's gonna be the answer yeah know that because they won't give you no easy questions all right so c um our last problem c is a hundred plus l what's this fifty plus five plus two add it up five hundred i'm sorry why get five money from a hundred plus fifty is 150 155 150 seven it's going to be the final answer now we're going to talk about the metric system and conversions one kilometer equals 1000 meters one meter equals 100 centimeters one centimeter equals 10 millimeters 2.54 centimeters equals one inch next we have one mile one mile equals 1760 yards or 5280 feet one yard equals three feet one foot equals 12 inches volume and capacity so there were a few questions on the test it's going to ask you to like convert gallons into cords so it's good to know the measurements not only for the hesi but as a nurse you need to know this stuff it doesn't go away especially in pharmacology it doesn't go away at all so it's good to know conversions just get a head start knowing measurements and knowing your metric system anyway so as you can see guys i color coordinated everything and i don't know about you but i have to color coordinate everything because i'm a visual learner and coordinating colors help me to understand better so i'll explain this in a little bit so one gallon equals 128 ounces and you need to remember that because i do remember a question on the test that asked about this i think it was like how much a gallon how many ounces in a gallon i i don't remember that so that's on the test anyway so one kind of equals also four quarts and as you can see this little chart here i don't know where this came from y'all i'm not the originator of this but when i tell you it helped me it has helped me so much to remember what's in a gallon okay so uh i explained this this big g represents purple g represents uh a gallon so the q is a quart and the piece represents pint um and as you can see everything is color coordinated so hopefully there's no confusion there so in a gallon there are four quarts as you see and then also in a gallon there is two four six eight pints okay eight pints so within the court there are two pints so hopefully this helps you as well because i tell you it really really helped me like i'm not really good with measurements like that so that helped me anyway one card equals two pints as we see here in our little illustration and then we have one time that equals two cups which is essentially where it's an ice cream like the same measurement in ice cream so just keep that in mind because i do remember a question about pints and two cups and something about ice cream so just remember that and one cup equals eight ounces or 16 tablespoons one ounce equals 30 ml this is something that you need to know as a nurse so just keep that in mind if it's not on the head so you just you need to know it okay so it also went out equals two tablespoons and one tablespoon equals four teaspoons and also it's 15 ml weight and mass one kilogram equals one thousand grams one gram equals one thousand milligrams and one ton equals two thousand pounds one pound equals sixteen ounces 2.2 pounds equals 1 kilogram now far as the hessi i do remember seeing 2.2 pounds equals kilograms i do remember seeing them asking the question about this conversion this conversion of one ton equals uh two thousand pounds i've never seen this and i did remember seeing a lot of questions about the kilograms and uh grams so know all of this because like i said if you're in nursing so there's a technique that students use to help convert certain units to larger or smaller units of measurements and we do that by keeping in mind a mnemonic king henry diet by drinking chocolate milk or your k stands for kilo h stands for hecta d stands for deca b stands for your basic units such as meters liters and grams and d stands for deca c stands for cinti and m stands for milli here's like a more in-depth prefix chart so screenshot this you guys to further explain what this mnemonic means or what it stands for we can look at this as a timeline where your bigger numbers are to the left and your smaller numbers are to the right and in the middle you have your basic units meter liter and grams now what that means it's kind of like a suffix if you will and your kilo hecto deca desi cinti and millie these are prefixes so this is like a shortcut genius way to solve problems like this so i'll further explain but before i do let me just go ahead and elaborate on the suffix or the basic units so you have a kilo leader you can have a deci leader you can have a millimeter you see what i'm saying so let's go ahead and do some sample problems we have 0.73 kilograms equals how many grams so we have kilo here and we have grams here all we have to do is move one two three places to get to the gram which is here and so basically that tells us that we need to move our decimal three places towards the ground three places to the right so we go one two three that means we gotta add a zero here so that means this zero we can exit it out so the answer would be seven thirty seven thirty grams so we move one two three places to get this answer we just basically move the decimal next we have 5.0 liters equals how many milliliters where is liters liters are here our basic unit and milliliters milli is right here so can you guess which way we're going to move that way because millie is there so we write our answer 5.0 and we have liters here and we move one two three times to the right so one two three this is where our decimal is going to be so now it's going to be 5 000 and that would be our answer next we have 4.6 centimeters equals how many millimeters now we have center and which is here and we're dealing with we're going from centimeters to millimeters which is milli is here so all we do is we move from here one time so we take our decimal and we move it one time so we end up with 46. now we have zero points 12 centimeters equals how many kilometers so we're starting with cinti's hair kilo is way over here so he just basically moves right to left so how many places are we going let's see one two three four five places to the left so let's write this and move the decimal five places to the left one two three four five so this every place will be a zero so the answer is going to be one two three four five five zeros one two three four five twelve so we'll write that again five point i'm sorry that'll be the answer now we're going to do some sample conversion problems we're going to convert miles to yards and yards to feet on the hesti i do believe you will be provided the conversion so you don't have to worry about memorizing it don't quote me on that one though so how you set these problems up it's pretty simple you basically go exactly in the in the order that the problem is written it and that'll make more sense as i write it out so first we have miles and yards so we're going to be focusing on this conversion right here miles and yards because there's seven seven one thousand seven hundred and sixty yards in one mile so we'll be focusing on this particular conversion so now we have 23 miles so we'll write 23 and one mile blank and that blank is going to be represented by x and then yards is going to be our 1760. so we just cross multiply and divide by once 40 000 480 that'll be the answer next we have 29 920 yards equals blank amount of miles still focusing on this particular conversion and we set it up in order in that order so we have 29 920 over yards so we put the 1760 first equals blank x is one of our x models so we put one so all we do is 29 920 times 1 divided by 1760. that's going to give us 17. let's go to the next problem we have 348 feet blank yards so how many feet are in how many feet or 80 yards so now we're dealing with this conversion here there's one feet i'm sorry one yard in three feet so now we're gonna do we're gonna set the problem up the same way we did the last ones 348 feet three because we're doing we're dealing with feet and yards now so that's that's why we're doing that conversion here so blank is x yards it's gonna be one 116 next we have 12 miles equals how many yards so now we're dealing with miles and yards so we're dealing with this particular conversion here 12 miles miles one equals blank x over yards 1760. so now we take our calculator cross multiply and divide thousand one hundred and twenty all right next we have 37 yards blank feet so how many dirt how many yards are in feet we have one yard equals three feet so we just set up our problem 37 yards one equals blank x over feet three so we will do 37 times three divided by which is going to give us one one one next we're going to be converting kilograms pounds and grams one thing you want to keep in mind is that when you're converting kilograms to pounds you multiply by 2.2 and when you're converting pounds to kilograms you divide by 2.2 when you're going grams to kilograms you divide by a thousand and when you're converting kilograms to grams you multiply by a thousand problem number one we have 11 kilograms equals how many pounds so to set this problem up do the same order as it's written 11 kilograms and how many kilograms is in a pound one equals that blank represents the unknown number x and then how many pounds two point two because there's two point two pounds and one kilogram so we just cross multiply and divide by one one is going to give us 24.2 as an answer we have 5.5 i'm sorry 55 kilograms equals how many pounds there's once again 2.2 pounds and one kilogram we set our problem up like so it's 55 the right meter 55 kilograms kilograms is one unknown number is x and how many pounds in the ground kilograms 2.2 and then we cross multiply and it's going to give us 121. put pounds here so 1 21. next we have 27 kilograms equals how many pounds so we'll just do it the same way just embrace it with my hands 27 kilograms one kilogram equals blank it's gonna be our x pounds two point two then we just cross multiply and divide 27 times 2.2 divided by 1 is going to give us 594 that's going to be our answer all right next we have 6 000 i'm sorry 63 370 grams converting that to kilogram write our problem up like so you know what grams a kilogram so we're going to be focusing on this conversion here either you divide by a thousand or multiply by a thousand depending on what the question is asking you so now we have going to grams to kilograms so if you don't remember like which way you do you just always set it up like this grams a thousand equals our unknown which is x over kilograms that's centigram which is one so we do 63 370 divided by multiplied by this divided by a thousand this is going to give us 63 now we have grams to kilograms 9 000 grams or how many how many grams i mean how many kilograms so we do nine thousand and how many grams are in a kilogram a thousand equals our unknown over how many kilograms are in grams which is one that's going to give us like we need 9 000 over 1 000 or you can just do it the pattern 9 000 times one divided by a thousand it's going to give us nine if we have 83 8.32 kilograms equals how many grams we set our problem up like so how many grams are in kilograms one gram one kilogram excuse me and x and that g is our grams a thousand and then we do cross multiply and divide eight thousand three hundred and twenty all right next problem we have 90.71 kilograms equals how many grams all right take our 90 71 kilograms over how many kilograms are in grams which is one over x which is our unknown and how many grams in kilograms a thousand and then we solve cross multiply and divide which will give us ninety thousand seven hundred ten grams so now we're going to cover fractions but before we do let's go over some rules when you're subtracting and adding fractions the denominator must be the same and if you're multiplying fractions you can just multiply it straight through when you're dividing fractions you need to flip the second fraction or inverse the second fraction and then multiply to get the answer let's do some practice problems find the least common denominator and we do that by focusing on the denominator which is the bottom line first thing we want to do is list the multiplications of four and then we're going to list the multiplications of nine oh in this scenario this is why it's good to know your multiplications um and your divisions like the basic so the least common denominator in this particular problem would be 45 because they have the 45 in common okay so the next problem we're going to do the same thing so we have 12 and 8. just write down the multiples of 12. you have to write it out like this it's totally fine so let's go ahead and do 8 four bam i don't have to go any further because we have identified the lcd which is that 24 that's what they have in common so for this problem the lcd is going to be 24. so we have some more fraction problems i did the first two because they're pretty simple all you have to do is add them across because the denominators are the same the last problem is one-half plus four-fifths the denominator is not the same so we can't add across so the first thing we're going to do is try to find our lcd and i can see that 5 times 2 equals 10 and that is going to be our lcd this method doesn't always work so don't try it just know that if you do just be cautious with that however i know that i can multiply the first fraction by five to get the denominator to be a ten and then our second fraction i know i can multiply by 2 to get the 5 to turn into a 10 in our denominator so that we can add these problems for the cross so now we have one half times 5 over 5 which gives us five over ten and then we have four fifths times two over two which gives us eight over ten so rewriting our problem it's going to look like this five over ten plus eight over ten which gives us thirteen over ten okay so now we have more problems five over seven plus three over fourteen first thing we wanna do is make sure our denominators are the same because they're not we have to find the lcd to change the problem completely around so that we'll be able to add this fraction up so um without having to write down the multiples of the lcd define lcd and all that stuff i can see that 2 times 7 makes 14 so because i know that i know automatically i need to multiply this fraction right here by 2 to get the denominator 14 and 14. all right let me explain so we have five over seven we're gonna multiply two by two and then that's going to give us 10 over fourteen now that we got this fraction our new fraction we can just take this without having to do too much and now we can add it straight across and i'll just put a box around this got 13 over 14. that's going to be our answer now depending on the question they may ask you to reduce next we have 7 1 8 plus 2 4 over 12. now the first thing you need to ask yourself are our denominators the same in this case they are not now as far as the whole numbers we're just going to leave that right now we're not going to solve this like this is a mixed fraction i remember when i first started encountered these problems i wanted to solve it like it was a mixed fraction but that's incorrect so you have to find your lcd and once you find your lcd you're going to go ahead and add those whole numbers together only when you have your lcd of course so here i am just writing out the multiples of eight and i'm going to write out the multiples of 12 to try to find the lcd and in this case i found the lcd and lcd is going to be 24. so the first fraction excluding the whole number i am going to multiply by 3 to get the denominator to be a 24 and the second fraction i am going to multiply by 2 to get my denominator to turn into 24 and then that way we'll be able to add so that leaves us with 7 3 over 24 plus 2 8 over 24. now when we add this up we're going to do 7 plus 2 which is going to give us 9 and then we do 3 over 24 plus 8 over 24 which is going to give us 11 over 24. next we have 3 over 20 minus 2 over 20. because our denominators are the same we can just subtract straight across and that's going to leave us with 1 over 20 as a final now we have some more subtraction fractions we know these pretty much the same way we do addition but we subtract so now we have 28 minus 17 so simply all we would do is subtract 28 from 17 we can do this old school way [Music] by literally writing writing it out eight minus seven is one two minus one is one so we have 11 over 37 will be our problem or b will be the answer next we have 17 minus i'm 17 over 25 minus 3 over 55 so we'll do this the same way we do any other problem um we will have to make sure the denominator is the same um i said it enough during this video but it's so important to make sure that the denominators are the same before you add or subtract so we're going to use 5 right to multiply this fraction to get 25 so that we can subtract it's going to give us 15 over 5 so now 17 minus 15 over um i'm sorry 25 so let's rewrite the problem this is why i write stuff down because i'll be forgetting digits and it's just not cool over 25 minus our new fraction 15 over 25 and that's gonna give us 2 over 25 and they may ask you to reduce it and you basically or write it in a mixed fraction or whatever so you do long division next we have 1 9 over 10 minus one fifth first thing we want to do is make sure our denominators are the same and they're not and because they are not we have to find the lcd and in this case we see that we can multiply 5 times 2 to get 10 or 10 divided by 5 will be 2 so we have to multiply that second fraction by 2 so we'll do 1 over 5 times 2 over 2 to give us 2 over 10 so that we can completely solve the problem so let's rewrite our problem 1 9 over 10 minus our new fraction 2 over 10 and that's going to give us so 9 minus 2 is 7 and that'll be over 10 plus that 1 will be in the front and that'll be our final answer next we have 25 1 over 7 minus 12 5 over 7. first thing we're going to do when we're dealing with addition and subtraction problems is x ourselves our denominator is the same are they yes they are in this case so we're good to go right no we're not good to go because if we were to solve this problem even though the denominators are the same we'll end up with a negative number and we do not want a negative fraction or a negative number in this case so this is what happens when we're doing subtraction sometimes we went ahead and borrow what they they call borrow a one so we're gonna borrow a one from that 25 and that 25 is going to become 24 and that one is gonna look like seven over seven because if you were to plug in seven divided by seven in the calculator you only get a one so that's how our one is going to look like in this case seven over seven so we're gonna add that seven over seven plus one over seven and that's going to give us 24 eight over seven so now we can solve our problem so um now we just go ahead and subtract because our denominators are the same so we got 24 minus 24 is 12 and then 8 minus 5 is going to give us 3 over 7. that's your answer all right so if you didn't get that i'll do it again with this problem but let's go to a word problem so next we have a word problem alan isn't making a table the table will be six one half feet long and four feet wide the board for the table is seven one eight feet long and four feet wide how much of the board will ellen need to cut off so the first thing that comes to my mind when i hear or see the word cut off that would be subtraction so i'm going to pay attention to seven one eighths and six one twelve one one half nine so you just basically would set it up like you would set up any other subtraction fraction problem and that's pretty much how we're gonna solve it so first thing we need to do is find the lcd but since i know 4 times 2 equals 8 i can just go ahead and multiply this fraction by 4 to give us a new fraction so that we can solve the problem that's going to give us 1 3 over 8 and that is the answer okay next we have five two thirds minus three four-fifths so like any other fraction we ask a fraction problem we ask ourselves are the denominators the same when we're dealing with a subtraction or addition problem once again um so they're not the same so we'll have to just go ahead and find the lcd between 3 and 5 which is going to be 15 and we just basically change our denominators into 15 and we do that by multiplying this fraction by 5 which is going to give us 15 here this fraction by 3 which is going to give us 15 in our denominator and let's rewrite the problem shall we now we have five our new problems right here just in case you can't see that 510 over 15 minus 3 12 over 15. are we done we're not done because we can't subtract 10 from 12 it'll leave us with a negative number just how we had the same instance with this particular problem we're going to have to add a 1 and borrow from that 5 so that this number can become higher so we can subtract it without any negative negative numbers um let's get started with that so to do that we'll just have to rewrite this problem take the five that turns into four and then we add our um 1 which is going to be 15 over 15 whatever your denominator is that's going to be your one so we add 15 over 15. just like in this problem we added seven over seven to get that one same thing so this is 15 of 15 you know it doesn't look like it but so we get 25 10 plus 15 is 25 over 15 that's our new fraction for this particular um part of the problem and so now we can go ahead and subtract so now we ended up with this right here to track this right here from this so i hope you guys look and see this this is really small okay so let's do it 4 25 over 15 minus 3 12 over 15. i don't know i can see that but this is what we end up with right here so once we do that we end up with 1 25 minus 12 is going to give us 13 over 15. that is the final answer we have four over fifths divided by one over seven now i'm just going to rewrite the problem so that i can end up with the correct answer instead of dividing um when you're doing a inverse you're going to multiply so that you can end up with the correct answer so 4 times 7 is 28 and then 5 times 1 is 5. now we can't leave the problem like this we'll have to use long division to get rid of this improper fraction and we'll do this like this won't have space i'll just erase that right there so five can go into 28 about five times five times five is 25 and remember this is what we're gonna do by multiply subtract and bring down those are the stuff should take when you're doing long division and i will be giving you guys that along this whole entire video okay so anyway we are going to subtract now eight from five is three and then there's nothing else to bring down so our answer is going to it's going to be five three over five so that'll be our answer right here all right somebody erased it so that we can move on to the next problem okay next we have 12 over 15 divided by three over five now keep in mind our rules go ahead and do the same thing we did to the last problem rewrite the problem like i said there's like so many ways to do this y'all but this is my way and it is a correct way and also the way the book teaches you how to do it so 12 times 5 is 60 and 15 times 3 i think is 70 no it's not 75 it's 45 um so what you're doing is we don't leave it like this of course uh we'll just go ahead and use long division 45 divided by 60. that 45 from going to 60 one time and keeping that in our steps five multiply subtract bring down when we're doing long division one time they can go in there so now we have let's see ten is going to be five five here then we got five from four is one so the answer is going to be so next we have 12 over 15 divided by three over five so we start by rewriting the problem 5 over 3 and that's going to give us 60 over 45 and we don't leave it like that of course problem we have to assume that it's going to access to like reduce it to the lowest common denominator um in this case we'll just go ahead and do 45 divided by 60 and we want to keep in mind our steps and let's divide for d multiply for m s for subtracting b for bring down that's how you do like the simple division problem 45 can go into 60 one time and then so 1 times 45 is 45 and then we subtract there's nothing else to bring down which lets you know that our problem is that it's in and so we just follow from here so 10 minus 5 it's gonna give us five and we borrowed that one from the six so that turns into five and at five minus four is going to give us one so it's going to be 15 so now we have to rewrite the problem uh so we rewrite it as 45 over 15 and then one is going to be the whole number so how do i make a video a separate video about like where to put what because that confused me sometimes so anyway you put your denominator here the whole number makes it the whole number the 15 the numerator so numerator denominator whole number whole number all right but can we keep our problem like this if you don't see it in the option that means you have to reduce this even further so in this case we have to reduce this 115 over 45 a little bit further so i'm going to erase this shawl so that um it'll have some space and i can erase all of this too that's our answer we have to reduce that and show you guys let's write it over here okay so to reduce the 115 over 45 you have to like divide by the gfc the greatest common factor so the greatest number i can see that both of these 15 and 45 have in common is five so you just divide by five and that's going to give you 15 divided by 5 is 3 and 45 divided by 5 is 9 so you end up with 3 over 9 and it can be reduced even more so so we do that by dividing like what number can go into nine and also three so that'll be three so we just divide three by three and nine by three and that's going to give us one over three so the final answer will be one one one third okay next we have 10 divided by 3 one-third so first thing we want to do is add a 1 under this and we need to get rid of this great root of this mixed fraction and we do that by 3 times 3 equals 9 plus 1 gives us 10 over 3 so i'll just write that out 3 times 3 give us 9 9 plus 1 gives us 10 and so we keep our same denominator and so we rewrite our problem as 10 over 3. so now i'll just write the problem over as follows we got 10 over 1 divided by 10 over 3 now so once we flip the second or inverse the second fraction we'll get 10 over 1 times 3 over 10 that's going to give us 30 over 10 and 30 divided by 10 is 3. so our final answer is three next we have twelve one-third divided by two so first thing you wanna do is go ahead and put that imaginary one there and we pretty much do this problem like we did this problem here so we need to make sure we do this right we can go ahead and get rid of the mixed fraction by adding 12 times 3 12 times 3 plus 1 36 36 plus 1 gives us 37 so we'll have 37 over three so we got two over one but since we're trying to inverse it so we just multiply one over two and 37 over six and then we'll just do six divided by 30. 6 can go into 37 6 times 6 times 6 is 36 that gives us 1 a remainder of 1 so our denominator stays the same whole numbers are going to be six we got one over six that's gonna be our final now we have multiplication fractions we have three over five times two over three we can just go ahead and multiply straight across because remember our rules right three times two is six five times three is fifteen now you may get instructions that say reduce to the lowest term to the lowest value so you'll just reduce this and we reduce by finding a common number between 6 and 15 and i have one and that's gonna be three because three times two is six and three times five is fifteen so we'll just divide by three and that's going to give us two over five now um if you don't see this value right here as an option i advise you to go ahead and just take the 16 divided by 15 and just like divide it this way because it's going to really depend on ultimately what they're asking for and what your options are so this is an option of your answer so we can do 6 divided by 15 so 6 goes into 15 uh let's see three no not three times it's gonna be two times to six times six is six times two is twelve that's going to give us three as a remainder so uh this also could be an option so this also can be an option for your answer so we have the next problem seven over nine times one over nine so we can just do this problem by simply multiplying across seven times one is seven nine times nine is 81. depending on the instructions they may ask you to reduce it or turn it into a fraction a mixed fraction but just pay attention to your instructions but this is our answer um so next we have six times four over fifths so we do this problem like we did the last few problems with division we add that one so i'm gonna write this problem over so we have six times four gonna give us 24 and then we have five times one it's going to give us five and then so we'll just either we just go ahead and depends on like i said what they're asking for so five goes into 24 four times four times five is 20 and it's gonna and then 24 minus 20 is going to give us four four it's gonna be four over five next we have three one third times two and we do this problem like we did this one we add that imaginary one to help us visualize it better and help us to rewrite the problem to me i think the multiplication and the division fractions are easier than the subtraction and addition because just like you have to find the lcd and i don't just be personal but mixed fraction here we can get rid of that mixed fraction by multiplying three times three and then adding that one it's going to give us 10 over three so i'll just write that out three times three is nine and then nine plus one is ten that's where we get the 10 from and we keep our same denominator so we have 10 over 3 so we're going to scratch that out and then um we have times 2 over 1. let's just move all this out of the way right let's focus right here so 10 times 2 is 20 and then 3 times 1 is 3. once again this might be your final answer depends on well this is improper so it's probably not going to be your answer but it depends on some factors so we're just going to go ahead and do division to find a a better looking fraction than this one 3 goes into 20 let's see six times yeah six times six times three is eighteen and then eighteen eighteen from twenty is going to be two and that's going to be our fraction we rewrite that as 6 a whole number three our denominator and two our numerator all right guys so next you'll see a lot of problems that ask you to change fractions into decimals you can do this several ways you can do it the long way or the easier way and all you have to do is simply just type in 3 divided by 4 in your calculator and it's going to give you the decimal or you can do long division which i'm going to show you guys in a few seconds okay so this is the harder way to do uh to change the fractions into decimals you will just do four divided by three and because you can't divide four by three and three by four you would have to add a zero a point a decimal point and a zero so we can look at this number as thirty right so four goes into thirty how many times so it'll be seven times seven times don't forget to put you move your decimal point up so 7 times 4 is 28 and we subtract and so once we subtract this eight it's gonna give us two and so because we have a remainder we have to add another zero because the whole goal is to not have any remainders when we're dealing with these types of problems we'll add a zero and we're gonna bring it down so now we have 20 so remember our stuff survive multiply subtract and bring down when we're doing the but anyway so now we have we brought it down now we're gonna um divide 20 and uh five which is going to give us let's see four times we're gonna get six so six nope that's not gonna work we're gonna do five five so um nobody 20 divided by four is five and then five times four is going to give us 20 and that's going to give us zero that's what we're looking for so the answer would be 0.75 all right so now we have five eighths let's do it also to check it you guys can like i said you can put it in your calculator that's easier it's faster three over four and it's going to give you 0.75 but this is just a longer way of doing ways just in case technology fails you somehow all right so let's do five over eight to do it the same way and since we're done with this problem i'll just go ahead and erase it so i didn't have it wrong all right so let's continue with five over eight so like we did with the last problem we're gonna go ahead and plug our numbers in five over eight because eight can't go into five we add a decimal point and a zero so we look at this number now as fifty so how many times a can go into fifty it goes into fifty about six times and we're gonna add our point and just make sure we line it up so uh it goes into eight um sticky time and let's keep in mind our steps that we did that we're gonna multiply 8 times 6 is going to give us 48 and then we subtract that's going to give us 2 and so our whole goal is to get rid of any remainders we have so because we can't go any further let's give away get rid of this two we have to add another zero on that zero and that leaves us with 20. so 20 goes into eight about four no not four times 20 goes into eight two times and so two times eight is going to give us 16 and then uh 20 minus 16 is going to give us four and so we still have a remainder so we have to just add another zero bring that zero down that gives us 40. so 40 divided by 8 is going to give us 5 and then 5 times 8 is 40 and then now we have our zero so now we're we're finished so fifth five over eight is zero point six two five all right two thirds so we do this like we did the last problem we set it up like like so so uh there's no way three can go into two so we have to add a decimal point into zero so now we can look at this number as a whole number twenty so how many times you can go into 20 about uh six times because six times let me show you put it right here six times uh three is going to be 18 and so we subtract 20 from 18 that's gonna give us two so we don't want remainders once again so we have to add another zero and then we bring the zero down so we have a zero here so we have 20 so now we have 20 divided by three it's going to be six again so we're gonna add another six here and then six times three is going to give us 18 and so we're gonna be uh stuck with the same two okay so we have two so we're gonna add that to zero bring that down so basically i'm gonna stop here it's gonna give us the same value it's gonna be 6.6666 so um yeah we'll just leave it like that some fractions are like that so with that being said it's good to know the one so i'll now show you guys in a little bit some factors you'll see some factors on the screen that you might want to screenshot i was good to just like memorize some of them or i'm just going to just use the calculator all right yeah so in this case we will write this answer like 6.666 you know or we can write it like this or just six point with the bar on the top of it indicating that the number keeps repeating so all right y'all so now i'm going to change decimals into fractions there's no easy way to do this like we can change our fractions to our decimals that's no easy way so we do this by knowing our place values and also dividing for an example 0.02 we would basically find the placement placement value of the last digit which is 1 10 100 is going to be in the hundreds so that tells us i i need to divide by 100 to get the decimal to turn into a fraction so i would take 2 and i would divide it by 100 and so we don't keep it like this in this form we'll just reduce it and um a common number i can see between two and a hundred would be two so we will go ahead and divide this problem by two and that's going to give us one over fifty and that'll be your final answer so 0.9 this is in a 1 10 place so we will divide 9 over 10 that's pretty much the answer there's something else you can do with that next we have 0.08 in the ones tens hundredths place we'll just take our eight and we'll put it over a hundred now we need to reduce this problem and a common number i can see i can see two [Music] of you see i can see two in this so we're gonna divide it by two eight divided by two is four over fifty so then now we can reduce four and fifty by two again and that's going to give us two over 25 and that'll be your final answer next we have three point zero fifty five and we have it in the thousands place one tens hundred thousands so we divide by thousand now because this number is before the decimal place it's going to be a whole number right so we do the 55 over a thousand because once again uh let's do is in the thousands place and then 3 comes from here it sits outside of the decimal point that's why it goes there so but they may ask you to reduce so you probably can reduce a little bit more by finding a common factor so it's probably going to be five i have to reduce this right here by five it will give me 11 over 200 and that'll that would not be your final answer because your final answer will be 11 3 over 200. all right so now we have 3.48 so we'll do that the same way this is a 200 right there all right so our three because it's before the decimal we go ahead and make it our whole number one's ten hundred so we're going to divide by 148 by 100 and we get started we can reduce this down i can see 12 i can see two let's do let's divide it by um let's divide by two to reduce this a little bit further 48 divided by two is going to give this 24 and 100 divided by two is we can reduce that a little bit more by two once again and it's going to give us 12 and 50 divided by 2 is 25 and so 3 12 over 25 is the final answer so you will be asked on the rc to change fractions into ratios you won't get a lot of problems but you will get a few and you do this by simply adding a colon in between your numerator and your denominator so i'll do that again with 19 119 over 40. you just place 19 first you place your colon second and then your 40 your denominator lastly so what if you had a number like this 23 over 7 equals x over 3 how would you write that well you would write your 23 first colon 7 you will write two colons which is equivalent to the equal sign with your x a colon and then three very simple let's do some practice problems ratios and proportions uh so let's get started so with these type of problems you just basically need to set them up like a division problem so the question asks us to solve the proportion to find the value of x so this looks kind of foreign i know but basically you just set it up like it's a fraction and that this that means equal and the two dots just means a fraction bar so just think about it like that so to solve this problem i'll be using my calculator instead of doing it the old-fashioned way so you'll just cross multiply and divide so we'll just do 10 times 14 divided by seven 10 times 14 and then 140 divided by 7. i'm going to give us 20 so x equals 20. so basically you cross multiply and you just divide by seven and that's going to give you that next problem y'all can follow along with me if you have your calculators 7 over 5 equals 91 over x so we do this the same way we multiply 91 times five divided by seven 155 and then 455 divided by seven is 65 so x equals 65. 15 x 3 and 8 let's just do it 15 over x equals 3 over we cross multiply and divide by 3. gives us 40 so x equals 40. we have john buys three bags of chips for 450 how much will john how much would it cost for john to buy five bags of chips so first thing i'll do is underline any numbers i see in the paragraph or the sentence so that's it yep so i'll just set this problem up just like how i always set up any other proportion ratio problem and now we'll just put this in a fraction form and in that order too close five below here and we put x at the bottom because that's the unknown value so we'll just basically cross multiply 450 times five to 22.5 so we have 22.5 divided by 3 which gives us 7.5 so it'll cost john 7.50 to buy um it's about five bags of chips now there's other ways that you can do this problem you got another way to do this problem uh but i prefer the first the first one but um anyway so john bought three bags for four dollars and fifty cents so find out how much one bag would cost so i would just basically divide 450 by three to find out how much individual bag cost which is going to be a dollar fifty so i know that one bag cost a dollar fifty i would just take a dollar fifty and multiply that by five that's going to give you seven dollars and fifty cents so these are so the questions on the hexi will actually change the decimal or change the fraction into a percentage and it's very easy so i'll just show you guys when you're moving the decimal places you always move it two places to the right so one two that's going to be 13 percent you also can find it this way you can just type in a calculator 0.13 times 100 and that's gonna get it's gonna give you 13. so 13 is the answer and make sure it has the percentage that indicates it's a percentage next we have 0.002 the same way you move the decimal place two places to the right so you go one two so we have point two or zero point two and you can easily find out this uh to see if it's correct you can just type in a calculator 0.002 times 100 and it's going to give you 0.2 percent okay so now we have the fractions 9 over 10. how do we convert that to a percentages we just type in a calculator oh it's two ways to do that we can type in our calculators nine divided by ten times a hundred that's going to give you ninety so i'll just write that out nine divided by ten um times 100 which will give you 90 percent so let's do 5 over 6 times 100 which will give us eight eighty three point three two three three percent so as you can see the pattern will repeat itself it will be eight point three three three three um so we'll just take the first three digits and multiply that by 100 and that will give you 83 okay so when you run across questions like this it's important to pay attention to what the question is asking you because how is worded is going to depend on how you're going to set it up and that's going to make sense in a little bit so for example we have the first question that says what is 15 out of 75 so the wording says out of so this is how you set up an out of type of problem you do 15 out of 75 equals x over a hundred so we do a hundred times fifteen it's going to give us fifteen hundred divided by seventy-five which is going to give us twenty so the answer is gonna be twenty percent so once again 100 times 15 divided by 75 okay so this question says what is 2 out of 50 out of another out of um as a percentage so that means you just have to write in that type of form in a percentage form so it's going to be the same situation 2 out of 50 x unknown number over 100 because when we're dealing with percentages always think about 100 always so you would do 2 times 100 which is 200 divided by 50. let's do that so the answer is going to be four percent okay so now we're going to be doing a of problem get something different color so a problem you solve those you just set it up differently so the question says what is 28 of 100 so this is how you set up an old problem you put your x first the second number which is 100 percent and then you do your first given number which is 28 you put that at the top over 100 so it's gonna be 28 times 100 divided by 128 okay so that's the other problem so we have another problem so what is point five of six hundred so we use the same formula you put x here over your second given number because i'm telling you y'all gotta follow the formula that i give y'all it can be really disastrous so x over 600 all right over the first the first given number which is 15.5 it took me a little minute to figure this out so i got it and i gave you guys a shortcut so all we have to do now since we know how to properly set the problem up is 600 times 15.5 divided by 193 lucky y'all i'll get the formula the cheap gold anyway uh so let's go to the i like to call the of what number problem of what number problem so this is how you set up these type of problems you put your first given number which is the 65 over x and then your second given number which is the [Music] twenty-five over a hundred so it seems like it's a pattern here right 100 is always the second fraction at the the second fraction denominator so just remember that all right so you just cross multiply 65 times 100 um 55 times 100 divided by 25 260. so let's do another one so like the formula says the of what number question get your first given number which is 44 over x over your second um given number over 20 over 100 that's going to give us 176. now we will be covering algebra so let's go over some basic rules first we want to keep in mind our order of operations and to do so we have a mnemonic please excuse by dear and sally that students use to help them remember the order of operations first we have parentheses exponents multiplication and division addition and subtraction so this basically tells you what order of operation you should do first when you encounter an expression now we'll go over integer rules for the sake of keeping this video short we'll just touch on the multiplication and division rules if you are multiplying or dividing by two positive numbers you end up with a positive number if you're multiplying or dividing a negative number and a negative number you end up with a positive number now if you're multiplying or dividing a positive number and a negative number you'll end up with a negative to keep in mind when dealing with algebra expressions is that when you're dividing you subtract your exponents and when you're multiplying you add them first we have two x to the fourth y to the third and z divided by x eight x to the second and z to the second first thing we do is two divided by eight which is going to give us four and we have x to the fourth divided by x to the second and remember we're not dividing we're subtracting so four from two is going to give us what choose x to the second and that x goes on top in the numerators place because this 4 here is greater same reason why the 4 is at the bottom in the denominators place because the 8 is greater than 2 but if it was vice versa then the the 4 would be in the numerators place so now we have y to the third and there's no y to divided by so we just leave it on top where it originally is and now we have z divided by z to the second power so two minus one is going to give us one and remember there's a one our imaginary one there when there's no exponents just imagine a one there so two for one is going to give us one and can you guys guess where this is going to go if you guess the bottom you're right because 2 is greater than 1 this is going to give us our final answer next we have two x to the fifth y times four x to the third by four to the fourth so first thing you do is multiply two times four gonna give us eight now we have x to the fifth and x to the third so we're adding because this is a multiplication problem so we have x to the eight and then we have y and y to the fourth there's an imaginary one here remember so four plus five four plus one is five it's y to the fifth you'll be x on the history to like simplify questions that are similar to these next we have a negative k minus 4 equals negative 21. now the whole goal is when you see these type of problems is to isolate your variable and you do that by eliminating so first we have a negative 4 we'll go ahead and add four to both sides i'm gonna cancel out the negative four here we have negative k i'm sorry not minus negative k equals so 21 negative 21 plus 4 is 17 so it's going to equal negative 17. so now we're left with the k right here so this is a multiplication 7 times k so we'll have to divide each side by negative seven to get rid of the seven so that the k can be on this side of the equal sign by itself so that's going to leave us cancelling out the negative sevens and we're left with k and k will equal because a negative divided by a negative or a negative times a negative would be a positive so it'll leave us just with 17 over seven a positive 17 over seven next we have a negative x y times x minus y plus y so the first thing we're going to do is plug in our values substitutions and i have to always write it out because i will what are you getting and i don't want to miss a step just because i didn't write something out so word of advice always write it out on your scratch paper y is negative 2 all right above so um well that means that we're going to rewrite this problem and plug in our numbers here so we have negative four times negative two and we have four minus negative two plus negative two all right all right so according to the order of operations we do what's in the parentheses first so that's this here so we got a four minus a negative two it's going to give us six and so the next step we'll take is go ahead and do uh the multiplication according to our order of operations so a negative two times a negative two will give us a positive eight and then we just bring down our um negative two here so the next thing we do i know that looks weird but we multiply eight and six which is going to give us 48 plus that negative two so negative i mean positive 48 plus a negative 2 will give us 46 and that will be our final answer the first question asks us to evaluate and um as you can see we're giving some values so that we can substitute our variables for these numbers here so basically you just plug them in and you just solve the problem so for example 2x so the x is going to be 2 so i'll just rewrite the problem and when i'm doing problems like this i rewrite the problem because if not i probably will mess the problem up so our new x x is going to be two that's going to be plus six and our y is going to be four multiply that by four and then we have three four r three negative three and then we'll just substitute that right now the colors here let z is going to be negative three so now we just basically solve the problem like a regular algebra expression i would say eligible was about 25 of the hesi math portion i would say so so keep it in mind please excuse my dear on sally those particular steps we'll go ahead and solve the problem i don't really have a lot of space for this but we're just going to have to erase and make some space you think either gotta write something at the bottom all right for now we just keep it like okay so first we do according to our steps please excuse my dear friend sally if you have to write stuff down go ahead and write it down because it's better to write it down than to forget the stuff just because you think you know so we're going to go ahead and do the parentheses problems 4 times uh two times two is four so we'll just go ahead and rewrite the problem right here so i'm gonna put four plus now we got six times four is going to give us 24. we're gonna do minus a negative however when we take 3 times 3 a negative plus a negative 8 equals a positive so it's going to be a positive 9. and now according to our rules we can go ahead and add these up these seven and that's going to be our final answer that's all we do for that simplify the expression so we have x to the fourth power y to the second power v times two y to the fourth power times z to the fifth power the first thing i do or what i need to do in this type of problem is to write out how many exponents i have of each variable and i do that by simply adding up the exponents so for my x's i only have four x's i'll just write four here my y's i have two here and then i have four here so we have six y's my z's i have one c here and i have five c's here so i have collectively six these this is gonna help me write my problem and make sure i don't miss anything because if i don't write it out i don't feel like me i just can't do math in my head i have to write out because if i can see it i know i can pick the right answer so 3 times 2 is 6 and then we have x how many x's do we have we have so y is how many y's do we have we have two that's four we have six so we can do six y and then z's we have six z's and this will be your final answer so we have a problem well we can use the fall method and i'll show you guys what that is if you don't know um so the acronym for fall is stands for first outer inner and last so i'll go ahead and show you guys an example so the first thing i'm gonna do is multiply five by three x well sorry five x by three x and that's going to give us 15 x and then uh 15x squared i'm sorry because there's two x's and then five times three which is going to give us positive plus 15 x and then we'll do the same thing with the two two times three is six three x and then two times regular 3 is just a positive 6. so we can combine like terms with the 15x and this and the supposed to be a plus there but we go ahead and combine that and then we'll end up with 15 x squared plus 21 x plus six and then be the final military time on the hesi you will be asked to convert military time into regular time and regular time into military time all of our am times are written in blue and all of our pm times are written in red one thing you want to keep in mind for is identifying your morning times is that there will be a zero in front of the regular time so for four o'clock in the morning it would be written o four hundred for nine o'clock in the morning it would be written o nine hundred now for ten o'clock in the morning it will just be written ten hundred and a four is eleven it'll be eleven hundred and twelve a.m in the morning would be twenty four hundred or zero zero zero zero now indicating your military evening times it's easy all you have to do is subtract if you're being asked to identify what is 1600 you just subtract 1600 from 12. if they ask you what is 2100 all you have to do is subtract 2100 from 12 and that's going to give you 900 so let's do some example problems question x convert the following 12 hour clock times to military times so i wanted to show you guys one and also question number four because i think the hardest thing about learning military time is knowing the 12 a.m difference from the 12 p.m so i'll give you guys an opportunity with keeping in mind the military time for number one so 12 am in military time if you guessed you guessed right would be 2400 or 000 and then number four twelve pm would be twelve hundred i don't know why that was hard for me to grasp and i'm going over this because i do remember seeing a problem regarding 12 uh p.m and 12 a.m i just can't remember which one it was but it's on there so know the difference between 12 a.m military time versus 12 p.m now we have number two we have 11 19 and 46 seconds a.m uh don't worry about the second show that's just what that in the book that's how i had it in the books how do you do this that time i'll give you guys an opportunity to convert it so in military time in the morning it'll be the zero on the front right but because it's a double digit we don't put the zero and we just go ahead and just write it write it out as and with no colons of course all right number three it's 2 22 in the morning so what are you guys what is the time for 222 military time [Music] all right if you guessed zero two two two you're correct next question access convert the following military times to 12 hour clock times all right first one we have is o 600 i mean i'm sorry 0.603 not o 600 so that would be i'll give you guys a few seconds to answer it on your own that will be because at zero it tells us that it's in the morning all right 603 in the morning next we have 1200 so how do we do that well the answer is obviously already so 1200 military time will be 12 p.m breaking time next we have 21 21 11. so i'll give you guys a few seconds to answer that one keeping in mind our military time and if you guessed 9 11 was it gonna be pm or am p.m because remember morning it would be oh 900 that was the case so yeah that's pretty much it for military time you guys have any questions make sure you comment all right y'all that is pretty much it i wish you guys well on your hesi exams or your teeth or kaplan whatever exam you're taking i want to give a quick shout out to all of my new subscribers and everybody who have been leaving comments leaving our testimonies of how these videos has helped them pass the sc please subscribe if you have not already and i will see you guys on the next one