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Find the Number That Has Been Added

In this worksheet, students work out the number that has been added to another number.

'Find the Number That Has Been Added' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Relationships Between Operations

Difficulty level:  

Worksheet Overview

In this worksheet, we must find the number which has been added.


Example

What needs to be added to change 9.799 to 9.8 ?

 

Answer

We use the inverse of addition (i.e. subtraction) to work this out.  

9.8 - 9.799 = 0.001

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