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Percentages: What's 20%?

In this worksheet, students understand how to calculate 20% of a given number.

'Percentages: What's 20%?' worksheet

Key stage:  KS 2

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Recognise Percentages

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

To find 10% of a number we must find 1/10 of it.

 

One way to do this is to divide the number by 10.

 

To find 20% of a number we first find 10% and then double the result.

 

Example

Find 20% of 530

 

Answer

First we find 10% which is 530 ÷ 10 = 53

Then we double the result to get 53 x 2 = 106

Work out:

 

20% of 540

Work out:

 

20% of 50

Work out:

 

20% of 90

Work out:

 

20% of 910

Work out:

 

20% of 460

Work out:

 

20% of 120

Work out:

 

20% of 220

Work out:

 

20% of 720

Work out:

 

20% of 1200

Work out:

 

20% of 3100

  • Question 1

Work out:

 

20% of 540

CORRECT ANSWER
108
EDDIE SAYS
First we find 10% which is 540 ÷ 10 = 54 Then we double the result to get 54 x 2 = 108
  • Question 2

Work out:

 

20% of 50

CORRECT ANSWER
10
EDDIE SAYS
First we find 10% which is 50 ÷ 10 = 5 Then we double the result to get 5 x 2 = 10
  • Question 3

Work out:

 

20% of 90

CORRECT ANSWER
18
EDDIE SAYS
First we find 10% which is 90 ÷ 10 = 9 Then we double the result to get 9 x 2 = 18
  • Question 4

Work out:

 

20% of 910

CORRECT ANSWER
182
EDDIE SAYS
First we find 10% which is 910 ÷ 10 = 91 Then we double the result to get 91 x 2 = 182
  • Question 5

Work out:

 

20% of 460

CORRECT ANSWER
92
EDDIE SAYS
First we find 10% which is 460 ÷ 10 = 46 Then we double the result to get 46 x 2 = 92
  • Question 6

Work out:

 

20% of 120

CORRECT ANSWER
24
EDDIE SAYS
First we find 10% which is 120 ÷ 10 = 12 Then we double the result to get 12 x 2 = 24
  • Question 7

Work out:

 

20% of 220

CORRECT ANSWER
44
EDDIE SAYS
First we find 10% which is 220 ÷ 10 = 22 Then we double the result to get 22 x 2 = 44
  • Question 8

Work out:

 

20% of 720

CORRECT ANSWER
144
EDDIE SAYS
First we find 10% which is 720 ÷ 10 = 72 Then we double the result to get 72 x 2 = 144
  • Question 9

Work out:

 

20% of 1200

CORRECT ANSWER
240
EDDIE SAYS
First we find 10% which is 1200 ÷ 10 = 120 Then we double the result to get 120 x 2 = 240
  • Question 10

Work out:

 

20% of 3100

CORRECT ANSWER
620
EDDIE SAYS
First we find 10% which is 3100 ÷ 10 = 310 Then we double the result to get 310 x 2 = 620
---- OR ----

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