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Maths Quiz - Level 5-6 Numbers - Percentages - Parts (Questions)

Percentages describe parts of a whole. Learn to find a percent of a quantity, compare results, and explain changes clearly using simple multipliers.

Fascinating Fact:

In exams, aiming to improve from 65 percent to 80 percent shows you’ve increased your correct answers by 15 percent of the total.

In KS3 Maths, you use percentages to describe parts of sets, test scores, and everyday quantities. You will convert between fractions, decimals, and percentages, and use multipliers to calculate results efficiently.

Key Terms

  • Percentage: A way to express a part out of 100, written with the % symbol.
  • Proportion: How much of the whole something is, often written as a fraction or percentage.
  • Multiplier: A number used to apply a percentage in one step, like 0.3 for 30% or 1.3 for a 30% increase.

Frequently Asked Questions (Click to see answers)

How do I find a percentage of a number in KS3 Maths?

Change the percentage to a decimal and multiply. For example, 35% of 240 is 0.35 × 240 = 84.

What is the easiest way to convert between fractions, decimals, and percentages?

Fraction to decimal: divide the numerator by the denominator. Decimal to percent: multiply by 100 and add %. Percent to decimal: divide by 100.

How do I compare two percentages fairly?

Use the same whole for both comparisons. Convert each to decimals or use multipliers so you are comparing like with like.

Try These Related Quizzes

1. What is 17% of £100?
[ ] £1.70
[ ] £17
[ ] £25
[ ] £71
2. What is 10% of £480?
[ ] £4.80
[ ] £40
[ ] £48
[ ] £72
3. What is 5% of 84 kg?
[ ] 4.2 kg
[ ] 8.4 kg
[ ] 20 kg
[ ] 23.6 kg
4. Abigail ran 800 metres on school sports day. Ben only ran 40% of Abigail's distance. How far did Ben run?
[ ] 120 metres
[ ] 210 metres
[ ] 240 metres
[ ] 320 metres
5. What is 15% of 3,000 light years?
[ ] 450 light years
[ ] 480 light years
[ ] 663 light years
[ ] 800 light years
6. What is 86% of 200?
[ ] 72
[ ] 150
[ ] 172
[ ] 180
7. Jonah is baking cakes and needs 35% of a bag of sugar weighing 240 g. How many grams will Jonah use?
[ ] 80 g
[ ] 82 g
[ ] 84 g
[ ] 86 g
8. At the market, towards the end of trading, the flower seller reduces her flowers to half price. What percentage has she knocked off?
[ ] 25%
[ ] 33%
[ ] 50%
[ ] 75%
9. Simona buys a dress in the sales at 60% less than the marked price of £38.50. How much does she pay for it?
[ ] £14.40
[ ] £15.40
[ ] £18.60
[ ] £23.10
10. What is 75% of £467?
[ ] £330.65
[ ] £340.80
[ ] £350.20
[ ] £350.25

You can find more about this topic by visiting BBC Bitesize - Percentages

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Maths Quiz - Level 5-6 Numbers - Percentages - Parts (Answers)
1. What is 17% of £100?
[ ] £1.70
[x] £17
[ ] £25
[ ] £71
A nice easy one!
2. What is 10% of £480?
[ ] £4.80
[ ] £40
[x] £48
[ ] £72
10% is the easiest to work out because it's the same as one tenth
3. What is 5% of 84 kg?
[x] 4.2 kg
[ ] 8.4 kg
[ ] 20 kg
[ ] 23.6 kg
You can work this out by finding out what 10% is (8.4) and then halving it, as 5 is half of 10!
4. Abigail ran 800 metres on school sports day. Ben only ran 40% of Abigail's distance. How far did Ben run?
[ ] 120 metres
[ ] 210 metres
[ ] 240 metres
[x] 320 metres
800 x 0.4 = 320
5. What is 15% of 3,000 light years?
[x] 450 light years
[ ] 480 light years
[ ] 663 light years
[ ] 800 light years
3,000 x 0.15 = 450
6. What is 86% of 200?
[ ] 72
[ ] 150
[x] 172
[ ] 180
To work this one out just double 86
7. Jonah is baking cakes and needs 35% of a bag of sugar weighing 240 g. How many grams will Jonah use?
[ ] 80 g
[ ] 82 g
[x] 84 g
[ ] 86 g
One way to work this out is to divide 240g by 20 to find 5% then multiply your answer by 3 for 15%
8. At the market, towards the end of trading, the flower seller reduces her flowers to half price. What percentage has she knocked off?
[ ] 25%
[ ] 33%
[x] 50%
[ ] 75%
Half of 100% = 50%
9. Simona buys a dress in the sales at 60% less than the marked price of £38.50. How much does she pay for it?
[ ] £14.40
[x] £15.40
[ ] £18.60
[ ] £23.10
Sounds like a bargain to me!
10. What is 75% of £467?
[ ] £330.65
[ ] £340.80
[ ] £350.20
[x] £350.25
75% is the same as 3/4
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