# Subtract Positive and Negative Numbers

In this worksheet, students will subtract positive and negative numbers.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Four Operations for All Numbers

Difficulty level:

#### Worksheet Overview

Subtracting a negative number is the same as adding the positive.

The answer may be positive or negative depending on the size of the numbers.

Examples

15 - -21 = 15 + 21 = 36

-117 - -30 = -117 + 30 = -87

Remember

-11 + 3

is the same as

3 + -11

which is the same as

3 - 11

which is -8

These rules are really important to learn, so make sure you know them!

Let's try some questions now.

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