Transcript for:
Dividing Decimals by Powers of 10

[Applause] math 6 quarter 1 week 7 milk base let's learn about divide decimal numbers by powers of 10 lesson two hello kids it's me teacher FR don't forget to subscribe like and share and hit the notification Bell for the latest video you can also follow my Facebook page teacher FR TV for today's lesson in math 6 we will discuss about divide decimal numbers by powers of 10 for most essential learning competencies divides decimals up to four decimal places by 110 100s and 1,000 and up to two decimal places by 10 100 and 1,000 mentally after going through this lesson you are expected to divide decimals up to four decimal places by 1110 100s and 1,000s and up to two decimal places by 10 100 and 1,000 mentally probably you are wondering about the steps in dividing numbers by one10 100s 1,000s and 110,000 notice that it is the same as multiplying by 10 100 and 1,000 and 10,000 so let us do this example let us divide 510 by 1110 100s and 1,000 let's divide first by 1/10 division of a number or decimal by 1/10 is actually the movement of one decimal place to the right of the dividend and divisor for example 510 / 1/10 first move the decimal point one place to the right of the dividend and also move the decimal point one decimal place to the right of the divisor so the result is 5 / 1 = 5 so this is the quotient next divide by 100s division of a number or decimal by 100s is actually the movement of two decimal places to the right of the dividend and divisor 510 divided by 100s first move the decimal point to place to the right of the dividend 1 2 and move decimal point two places to the right of the divisor 1 2 then add one zero to the dividend so this is the result 50 / 1 equal 50 and divide by 1,000 division of a number or decimal by 1,000 is actually the move movement of three decimal places to the right of the dividend and divisor 510 divided by 1,000 first move the decimal point three decimal places to the right of the dividend 1 2 3 and also move the decimal point three decimal places to the right of the divisor 1 2 3 then add zero to the empty space of the dividend two Zer 1 2 so this is the result 500 / 1 equal 500 and now let us do learning test one divide and check write your answer in your notebook number one 510 divided by 1110 move the decimal point one decimal place to the right of the the dividend and divisor so this is the result 5 / 1 = 5 5 * 1 = 5 5 - 5 = 0 the quotient is 5 number two 9600s ided by 100s first move the decimal point two places to the right of the dividend and the divisor so this is the result 96 / 1 = 96 96 * 1 = 96 96 - 96 = 0 the quotient is 96 number three 5 and 110 divided by 1,000 move the decimal point three decimal places to the right of the dividend and the divisor then add two zeros to the dividend so this is the result 5,100 / 1 = 5,100 5,100 * 1 = 5,100 5,100 - 5,100 equal 0 the quotient is 5,100 number four 6 and 2500s divided by 100s move the decimal point two decimal places to the dividend and divisor so this is the result 625 divided by 1 = 625 625 * 1 = 625 625 - 625 = 0 so the quotient is 625 and for number five 37 and 210 ided by 1/10 move the decimal point one decimal place to the right of the dividend and the divisor the result is 372 / 1 = 372 372 * 1 = 372 372 - 372 = 0 the quotient is 372 [Music] how do we divide decimals by 10 100 or 1,000 mentally to what direction do we move the decimal point let's divide the dividend by 10 100 and 1,000 if you are dividing decimal by 10 then move the decimal point one decimal place to the left the same number of zeros in the divisor same with 100 move two decimal point to the left in 1,000 you are going to move the decimal point three decimal places to the left for example if you are dividing decimal by 10 then move the decimal point one decimal place to the left 78 and 4600 ided by 10 move the decimal point one decimal place to the left the same number of Zer in the divisor so the result [Music] is same with 100 for example 78 and 4600s divided by 100 move the decimal point to the left of the dividend the result is 7,846 10,000s and for 1,000 the divide 78 and 4600s divided by 1,000 in 1,000 you are going to move the decimal point three decimal places to the left of the dividend then add Zer to the dividend the same number of zeros in the divisor so there are three zeros in the divisor the answer is 7,846 100,000s for learning task two divide and check write your answer in your notebook ask your parents to use stopwatch or record your progress in answering the given test number one 80010 and 210 divided by 100 the divisor is 100 so move the decimal point two decimal places to the left of the dividend 1 2 and the result is 8 and 102,000 number two 72 and 900s ided by 10 the divisor is 10 so move the decimal point one decimal place to the left of the dividend 1 and the result is 7 and 209,000 number three 960,000 divided by 1,000 the divisor is 1,000 so we will move the decimal point three decimal places to the left 1 2 3 then add Zer 1 2 3 this is the result 960 Millions number four 6 and 93,000 divided by 100 the divisor is 100 move the decimal point two decimal places to the Lev of the dividend the result is 6,9 300,000 and for number five 2 and 6300 ided by 10 the divisor is 10 so move the decimal point one decimal place to the left then add zero then the result is 263,000 and for number six 4 and 9 143,000 / 1,000 equals so first move the decimal point three decimal places to the left of the dividend then add Zer so the result is 4,943 millions now let's do learning Tas three solve the problem carefully by answering the questions below use the first step in solving word problems write your answer in your notebook number one Mrs Andres has 35,3 45 pesos and 85 centavos she wants to give it to the victims of Mount tal eruptions in Batangas Philippines how much will each family receive if she decides to give it to 10 families first step is to understand what is s the amount will be received by each family what are the given 35345 pesos 85 centavos and 10 families second step is to plan what operation to be used Division and what is the number sentence 35345 pesos 85 centavos divided by 10 families step three sold the solution is 35345 P85 centavos divided by 10 the divisor is 10 so move the decimal point one decimal place to the left of the dividend then put the decimal point the quotient is 3,534 pesos and 585 centavos now write the answer each family will receive 3,534 pesos and 585 centavos step four is to check and look back multiply the quotient and the divisor the result is 35,3 45 pesos 85 centavos number two what if Mrs Andress decides to divide it to 100 Families how much will each family receive what good deeds did she has shown first step is to understand what is as in the problem the amount will be received by each family what are the given facts 35,3 45 pesos and 85 centavos and 100 families second step is to plan what operation to be used Division and what is the number sentence 35345 pesos 85 centavos divided by 100 families step three is to solve the solution is 35345 pesos 85 centavos divided by 100 the divisor is 100 so move the decimal point two decimal places to the left then put the decimal point the quotient is 353 pesos and 4585 centavos then write the answer each family will receive 353 pesos 46 OS then check and look back multiply the quotient by 100 the result is 353 pesos 46 centavos dividing whole number by 110s and 1,000s is the same as multiplying numbers by 10 100 or 1,000 on the other hand dividing 10 100 or 1,000 is by moving the decimal places to the left the same number of Zer in the divisor and for our last activity Learning task 4 choose the letter of the best answer write the chosen letter in your notebook number one what is the quotient when 845 and 4500s is divided by 10 A B C or D what is the correct answer very good the correct answer is letter C 84 and 545,000 number two what is 36 and 7900s / 100 equal to A B C or D very good the correct answer is letter a 3,679 10,000 number three how many times greater is 78 and 4300s than 10 A B C or D very good the correct answer is letter a 7 and 843 th000 number four what will be the answer if we divide 713 and 9 by 1,000 A B C or D very good the answer is letter D 7,139 10,000 and for number five what is the quotient if we divide 67 and 54 hundreds by 100 A B C or D very good the correct answer is letter C 6,754 10,000 so kids do you understand our lesson for today wow good job kids I hope you learn a lot from this lesson until our next topic bye-bye kids thanks for watching [Applause] [Music]