Multiply a 2-digit number by a 1-digit number
Home learning focus
Learn how to multiply a 2-digit number by a 1-digit number.
- one video
- one interactive activity
- two worksheets
When multiplying a 2-digit number by a 1-digit number you can use both mental and written methods.
Let's take a look at an example of solving a multiplication problem in your head. Before you press play have a think about how you would work out 19 x 5 ?
How can I multiply a 2 digit-number by a 1-digit number?
You can do this by breaking down a number.
Let's think about an example, what is 6 x 40?
6 x 40 is equal to 6 x 4 x 10
If we put the 10 to one side, 6 x 4 is equal to 6 x 2 x 2
6 x 2 x 2 = 24
Now bring back that ten, 24 x 10 = 240
This means 6 x 40 = 240
Break down the calculation as much as you need to. If you know 6 x 4 = 24, you don't have to break it down into 6 x 2 x 2.
Now, find out more about multiplying a 2-digit number by a 1-digit number using a written method with this interactive guide.You only need to play sections 1 to 4
Once you've opened it, you can use the 'Next' button on the bottom right-hand side of the screen to work your way through each page.
There's more to learn
Have a look at these other resources around the BBC and the web.