  # Work Out Simple Percentages

In this worksheet, students will work out a simple percentage of a number without using a calculator. Key stage:  KS 2

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Recognise Percentages

Popular topics:   Percentages worksheets

Difficulty level:   #### Worksheet Overview

In this activity, we will learn how to calculate percentages of numbers without using a calculator.

To find 10% of a number, we simply find one tenth, or divide by ten.

Look at these examples:

10% of 300 = 300 ÷ 10 = 30

10% of 55 = 55 ÷ 10 = 5.5

10% of 120 = 120 ÷ 10 = 12

We can then use this fact to work out larger percentages which are multiples of 10.

For example, if we know that 10% of 200 is 20, we can find 20% or 30% easily using multiplication.

10% of 200 = 20 (200 ÷ 10)

20% of 200 = 40 (20 × 2)

30% of 200 = 60 (20 × 3)

Let's try an example together.

Example

Find 40% of 240.

First, we find 10% of 240 by dividing 240 by 10.

240 ÷ 10 = 24

Next, we multiply this by 4 to get 40% of 240.

24 x 4 = 96

Happy with that? Now it's time to try some of these yourself.

Best of luck!

### What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started #### Popular Maths topics

• • • • 