Using your times tables knowledge for small single-digit multiplication equations is great. When you are asked to multiply any two, three or four-digit number by multiples of ten, or any two-digit ...

To help you understand the algorithm, the video shows a simple two-digit by two-digit multiplication. You can see that the first and last digits are essentially the result of one multiplication.

You will need to calculate using a column method, which is another name for long multiplication. This will allow you to multiply up to 4-digit numbers by 2-digit numbers.