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.

Multiply a 3-digit number by a 1-digit number Learn how to use place value charts and short multiplication to multiply.

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

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.

We watched this example of how to multiply two digit numbers, and have been batting 1.000 on every combination. It's hard to say how well the trick holds up to your standard "multiply and carry" ...