# Practise Subtracting Numbers by Counting Up

In this worksheet, students will work out a subtraction by counting up using a number line.

Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Solve Add/Subtract Problems to 1000

Difficulty level:

#### Worksheet Overview

In this activity, we will work out a subtraction by counting on using a number line.

Example

Work out 73 - 38 =

We use the number line to count up from the smaller number to the larger number.

First step: go to the next ten, i.e. 40 here (38 + = 40)

Second step: count up in tens to the ten below your given number, i.e. 70 here (40 + 30 = 70)

Third step: count up to the given number, i.e. 73 here (70 + 3 = 73)

Answer is 2 + 30 + 3 = 35

So we can see that 73 - 38 = 35

Don't worry if that looks a bit tricky, we'll go through lots of questions together and hopefully, it will soon become easy!

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