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Find the Missing Number in a Calculation

In this worksheet, students will find the missing number in the sum by using addition and then subtraction.

'Find the Missing Number in a Calculation' worksheet

Key stage:  KS 2

Year:  Year 3 Maths worksheets

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Solve Add/Subtract Problems to 1000

Popular topics:   Addition worksheets

Difficulty level:  

Worksheet Overview

In this activity, we will find the missing number in a calculation.

 

tree with apples

 

Example

Find the missing number in the sum.

 

134 + ___ + 22 = 160

 

Answer

Step 1:   Add together 134 + 22 = 156.

Step 2:   Work out what you need to reach 160 by calculating 160 - 156 = 4

 

So,

134 +  4  + 22 = 160

 

Did that make sense?

 

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