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Checking Answers Using an Inverse Operation: Addition or Subtraction

In this worksheet, students check answers using an inverse operation.

'Checking Answers Using an Inverse Operation: Addition or Subtraction' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Relationships Between Operations

Difficulty level:  

Worksheet Overview

In this worksheet, you must use an inverse or opposite operation.

 

It is easy to make mistakes when using a calculator. 

Check your answers using an inverse operation.

 

Remember that ADDING and SUBTRACTING are inverses.

 

 

Example 1:

467 + 94 = 561

Check:

561 − 94 = 467  

 

Example 2:    

952 − 734 = 218

Check:    

218 + 734 = 952

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