# Practise Working Out Missing Numbers: 0 to 20

In this worksheet, students will use the information they have to calculate a missing number in the number range 0 to 20.

Key stage:  KS 1

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Solve Add/Subtract Problems to 20

Difficulty level:

#### Worksheet Overview

Adding whole numbers means that we are combining numbers to form a total.

To identify the missing number, the given number is subtracted from the total number.

Example

Find the missing number in the sentence below

? + 4 = 8

Method

8 - 4 = ?

Missing number = 4

Does that look easy?

Let's have a go at some questions then.

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