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Find the Missing Number by Using Inverse Operation

In this worksheet, students will subtract to find the missing number in an addition.

'Find the Missing Number by Using Inverse Operation' worksheet

Key stage:  KS 2

Year:  Year 4 Maths worksheets

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Add/Subtract up to Four-Digit Numbers

Difficulty level:  

Worksheet Overview

This activity is about finding the missing number in an addition.

 

Example

Find the missing number.

 

 
 + 269 = 623

 

Answer

Adding and subtracting are opposites (inverses).

So, to work out the missing number we simply subtract.

 

623 - 269 = 354

 

Answer is 354

 

Are you ready to have a go at some questions now?

 

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