Find Percentages of Numbers, Quantities and Measurements

In this worksheet, students find percentages of numbers, quantities and measurements.

Key stage: KS 3

Curriculum topic: Number

Curriculum subtopic: Define, Interpret and Compare Percentages

Difficulty level:

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Worksheet Overview

This worksheet is about finding percentages of numbers, quantities, and measurements.

It is easy to find 10% of any number because 10 % =

100

Simply divide by 10

So 10 % of 192 is 19.2

10 % of 54g is 5.4g etc.

When you know 10% it is easy to find	1% (÷10 again).
	5% (÷ 2).
	30% (× 3).

and then you can add any combinations together.

Example:

Find 43% of 212 m

10% of 212m is 21.2 m

40% of 212m is 21.2 × 4 = 84.8 m

1% of 212m is 21.2 ÷ 10 = 2.12 m

3% of 212m is 2.12 × 3 = 6.36 m

43% of 212m = 40% + 3% = 84.8 + 6.36 = 91.16m

You can work out percentages on a calculator either by using the % key,
or by multiplying the number by the required percentage and dividing by 100.

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