Percentages
To work out the percentage OF something, replace the word OF with multiplication (×).
Percentages are used in everyday life, for example, calculating discounts during sales and interest rates at banks. Knowing how to find and use percentages is an important skill.
A percentage is a proportion that shows a number as parts per hundred. The symbol ‘%’ means ‘per cent’. 9% means 9 out of every 100, or \(\frac{9}{10}\).
Percentages are just one way of expressing numbers that are part of a whole. These numbers can also be written as fractions or decimals. 50% can also be written as a fraction, \(\frac{1}{2}\), or a decimal, 0.5. They are all exactly the same amount.
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Question 1 of 10
1. Question
\(\frac{1}{4}\) expressed as a percentage is:
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Question 2 of 10
2. Question
The x% of 150 is 63. What is x?
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Question 3 of 10
3. Question
What is the percentage change if 600 increases to 900?
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Question 4 of 10
4. Question
What is 40% of 75%?
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Question 5 of 10
5. Question
What is half of the sixeighths as a percentage?
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Question 6 of 10
6. Question
0.985% can be expressed as …
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Question 7 of 10
7. Question
90% in fraction form can be expressed as…
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Question 8 of 10
8. Question
Express 75% as a decimal.
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Question 9 of 10
9. Question
John scored 40 out of 70 in his math test. Peter scored 80 out of 170 in a different math test. Who scored the higher percentage?
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Question 10 of 10
10. Question
What is the percentage change when 300 decreases to 50?
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