Skip Discover Education Main Navigation

Browse the Brain Boosters Gallery


  Number and Math Play

Right in the Middle
Q The numbers in the middle column are related in some way to the numbers in the left and right columns. How are they related?

3 42 8
5 51 3
8 61 2
7 53 5

A In each row, the middle number is the product of the number on its left and the number on its right, but backwards.

STRATEGY: Look for a pattern.

Source: Scholastic, Mensa Number Puzzle for Kids, puzzle 184