  # Learn About Subtraction: Write Two Facts (1)

In this worksheet, students learn about two more subtraction facts from each of the given sums. Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Solve Add/Subtract Problems to 1000

Difficulty level:   #### Worksheet Overview

From any addition fact, we can normally also get two subtraction facts.

3 + 5 = 8.

From this we can get the two subtraction facts:

8 - 5 = 3

8 - 3 = 5

This works with all numbers, even bigger ones.

Example

Complete the two subtraction facts from the following addition fact, to work out the values of A and B.

21 + 68 = 89

89 - 68 = A

89 - 21 = B

21 + 68 = 89.

From this we can get the two subtraction facts:

89 - 68 = 21

89 - 21 = 68

So we have shown that:

A = 21

B = 68

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