# Practise Using Adding Bonds up to 10

In this worksheet, students will be tested on their knowledge of addition number bonds up to 10.

Key stage:  KS 1

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Use Number Bonds to 20

Difficulty level:

#### Worksheet Overview

In this activity, we will be doing our number bonds to 10.

We need to know them off by heart.

It is important to know all the pairs of numbers that equal 10.

These penguins are going to remind us of our number bonds to 10:

Remember that with our number bonds, the numbers can be swapped over.

For example, 2 + 8 go together to make 10 and so does 8 + 2.

Do your best to look through these and try to remember them.

Some of these questions will be looking at the related subtraction facts, if we know these number bonds, we will be able to work out their related subtraction facts.

Lets have a look at 3 + 7 = 10.

This could also be written as 7 + 3 = 10

If we move the numbers around so that the largest number goes first, we can make the matching subtraction facts, which are:

10 - 3 = 7 and 10 - 7 = 3

Example 1

1 + ? = 10

We need to remember what number goes with 1 to make 10.

If we look back at our penguins, we can see that it is 9 that goes with 1 to make 10. So, our answer is 9.

If we cannot remember our number bonds, we can work them out!

For this one, we need to start on 1 and count up to 10. It takes 9.

Are you feeling ready to have a go at some questions?

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