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Express as a Percentage

This self-marking quiz requires you to work out what one quantity is as a percentage of another.

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This is level 3; Express one quantity as a percentage of another quantity with different units. You can earn a trophy if you get at least 9 questions correct.



1. Express 20 centimetres as a percentage of 2 metres.
% Correct Wrong


2. Express 376cm as a percentage of 4m.
% Correct Wrong


3. Express 210mm as a percentage of 25cm.
% Correct Wrong


4. Express 3960mm as a percentage of 4.5m.
% Correct Wrong


5. Express 549m as a percentage of 3.05km.
% Correct Wrong


6. Express 1679m as a percentage of 3.65km.
% Correct Wrong


7. Express 19.14m as a percentage of 3300cm.
% Correct Wrong


8. Express 972g as a percentage of 4.05kg.
% Correct Wrong


9. Express 1896g as a percentage of 3.95kg.
% Correct Wrong


10. A garden has an area of 1050m2. Within the garden there is a flower bed in the shape of a rectangle 7m long and 3m wide. What percentage of the area of the garden is taken up by the flower bed?

% Correct Wrong


11. A new healthy wedding cake is being sold in a shop. Each cake weighs 6kg and contains 360g of protein, 640g of fat and 5kg of carbohydrate. What percentage of protein does one wedding cake contain?

% Correct Wrong


12. A bottle of Junky Cola contains one point five litres of the sugary, unhealthy drink. Winky Lash drinks a 30cl glass of Junky Cola. What percentage of the whole bottle is that?
% Correct Wrong
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This is Express as a Percentage level 3. You can also try:
Level 1 Level 2 Level 4

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

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Featured Activity

Nine Digits

Nine Digits

Arrange the given digits one to nine to make three numbers such that two of them add up to the third. This is a great puzzle for practicing standard pen and paper methods of three digit number addition and subtraction.

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Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths page is an alphabetical list of free activities designed for students in Secondary/High school.

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Description of Levels

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Level 1 - Express one number as a percentage of another.

Level 2 - Express one amount of money as a percentage of another.

Level 3 - Express one quantity as a percentage of another quantity with different units.

Level 4 - More difficult questions where the answers require rounding.

More on this topic including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

Help Video

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.

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