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Learn About Subtraction: Write Three Facts (2)

In this worksheet, students look at a subtraction fact and write down three more facts based on it.

'Learn About Subtraction: Write Three Facts (2)' worksheet

Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Solve Add/Subtract Problems to 1000

Difficulty level:  

Worksheet Overview

Addition and Subtraction are closely linked.

 

From any subtraction fact, we can normally get another subtraction fact and also 2 addition facts.

 

Look at the subtraction fact:

 

8 - 3 = 5

 

From this, we can also say that:

 

8 - 5 = 3

 

And we can also write these 2 addition facts:

 

3 + 5 = 8

5 + 3 = 8

 

This will work for any numbers, even much larger ones.

 

Example

Use the subtraction fact:

 

63 - 27 = 36

 

to work out the values of A, B, C and D.

 

63 - 36 = A

36 + B = 63

27 + C = D

 

Answer

From the subtraction fact:

 

63 - 27 = 36

 

We get the other subtraction fact:

 

63 - 36 = 27

 

and the 2 addition facts:

 

36 + 27 = 63

27 + 36 = 63

 

So

A = 27

B = 27

C = 36

D = 63

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