To multiply any two-digit number by 11, simply add the two digits together and place the result in between the two digits. For example, to multiply 36 by 11, add 3 and 6 together, which is 9.

Multiply a 2-digit by a 1-digit number Learn the mental method and written method for multiplying a 2-digit number by a 1-digit number.

In National 4 Maths multiply a number given to two decimal places by a single-digit whole number and by multiples of 10, 100 and 1000.

This article reveals a simple and effective shortcut for multiplying numbers that end in 5. Perfect for students, it breaks down the trick for both single-digit and double-digit numbers ending in ...