# Know Your Subtraction: Subtract Numbers Between 0 and 20

In this worksheet, students will subtract one-digit numbers in the range 0-20.

Key stage:  KS 1

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Add and Subtract to 20

Popular topics:   Subtraction worksheets

Difficulty level:

#### Worksheet Overview

Subtraction is taking something away.

It is the opposite of addition. (Addition is adding something on.)

Look at this example.

 Take 4 away from 20 equals 16

We can write it like this, too.

20 - 4 = 16

We take 4 away from 20 to get 16. That's subtraction!

Now try for yourself.

Pop your finger on 20 on the number line. Bounce it back (to the left) 4 places. What number did you get to? It should have been 16 because we know that

20 - 4 = 16

Always count to the left on a number line when you are subtracting.

Are you ready to have a go at some questions?

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