  # Work Out the Missing Number in Calculations

In this worksheet, students will find the missing number in a given calculation. Students could attempt the calculations in their heads first. Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Four Operations for All Numbers

Popular topics:   Numbers worksheets

Difficulty level:   #### Worksheet Overview

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

Example

Work out the missing number:

1000 - _____ = 219

We can use the fact that 1000 - 219 will give us our missing number.

1000 - 219 = 781

1000 -   781   = 219

We will need to think about doing the inverse of calculations to solve many of these questions.

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