# Add and subtract by making ten

## Home learning focus

Learn how making 10 can be a useful strategy when solving addition and subtraction calculations.

This lesson includes:

• one video
• two activities

# Learn

The video in today's lesson explains how you can work out a calculation by adding or subtracting to 10 first.

## How can adding by making 10 help?

Adding by making 10 is also called bridging through 10.

Here's what to do:

• Work out what you need to add to your first number to make ten.

• Take this from your second number. What do you have left?

### Example

7 + 4 = ?

Work out 7 + ? = 10.

Take this answer away from the second number in the calculation.

4 - 3 = 1

10 + 1 = 11

So 7 + 4 = 11.

## Activity 1

Worksheet 1 - Add by making 10

Print out this worksheet from Classroom Secrets and see if you can work out the answers to the questions by making 10 first.

## Activity 2

Have a go at this three-question quiz to put what you've practised into action.

# There's more to learn

Have a look at these other resources around the BBC and the web.