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Find Percentages of Numbers, Quantities and Measurements

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

'Find Percentages of Numbers, Quantities and Measurements' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Define, Interpret and Compare Percentages

Difficulty level:  

Worksheet Overview

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

 

It is easy to find 10% of any number because 10 % = 
10
100
=
1
10
 

 

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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