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

Then take the two numbers you want to multiply—in the case of the above image, 7 and 8—and put together the corresponding fingers (as shown in the picture to the right).

We'll explore how this shortcut works for both two-digit numbers multiplied by themselves, and even for multiplying two different numbers ending in 5.

Learn activities for fourth grade math to prepare for school. Teach your children 4th grade math skills like fractions, multiplication and division.

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