Quiz for:
Mental Math Techniques from a Special Book

Question 1

What does Brilliant.org offer as part of their platform?

Question 2

How many days is the free trial offered by Brilliant.org?

Question 3

Who wrote the forewords for the book on mental math?

Question 4

What is the first step in multiplying a two-digit number by 11?

Question 5

When practicing the example 35 squared, what is the resulting number?

Question 6

How many chapters are in the book, including the chapter named 'Infinity'?

Question 7

For multiplying 53 by 11, what is the middle digit?

Question 8

What can be found in Arthur Benjamin's TED Talk as mentioned in the book?

Question 9

Who is the renowned professor and author of the book?

Question 10

When squaring a two-digit number that ends in five, what do you do after multiplying the first digit by the next higher digit?

Question 11

What type of lessons does Brilliant.org emphasize?

Question 12

In the example of multiplying 68 by 11, what is placed in the middle?

Question 13

For what audience does the book claim to be most suitable?

Question 14

What percentage discount is provided for the annual premium subscription through the book?

Question 15

Which chapter covers quick tricks like multiplying by 11 and squaring numbers that end in five?

Question 16

What should you do if the result of adding two digits is more than 9 when multiplying by 11?

Question 17

In the example of squaring 65, what is the next higher digit after 6?