This sounds like a job for Multiplication Boy! Multiplication Boy comes to the rescue, but loses his trusty number line on route. Can he find another way to work out the answer?

This Maths article explains both the mental method and written method for multiplying a 2-digit number by a 1-digit number.

Use multiplication to tell "how many." Multiply by 2 using the grouping of objects.

Learn how to multiply any number by 11 instantly with this simple math trick. Perfect for school students to solve problems faster and impress friends in class.