Percentages

Finding percentages of amounts and converting between fractions, decimals and percentages

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Try each question. If you're stuck, leave it and come back. The answer key is on the last page.

1
What is 50% of 80? A) 20 B) 40 C) 60 D) 80
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2
Convert 25% to a fraction in its simplest form. 25% = ___
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3
Is this statement true or false? 10% of 200 is 20. A) True B) False
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4
What is 25% of 60? A) 10 B) 15 C) 20 D) 25
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5
Find 15% of 200. 15% of 200 = ___
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6
Put these values in order from smallest to largest: 30%, 1/4, 0.35, 20% Put these in order: 30%, 1/4, 0.35, 20%
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7
Is this statement true or false? 75% is the same as 0.57. A) True B) False
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8
In a class of 30 children, 60% walk to school. How many children do not walk to school? ___ children do not walk to school.
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9
A shop increases prices by different percentages. Order these final prices from cheapest to most expensive. Original price for all items is £40. Put these in order: 5% increase, 25% increase, 10% increase, 50% increase
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10
A coat costs £120. The price is increased by 15%. What is the new price? £___
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Answer key

Percentages · for parents and teachers

1
40
50% of 80 = 80 ÷ 2 = 40.
2
1/4
25% = 25/100 = 1/4 (dividing numerator and denominator by 25).
3
True
10% of 200 = 200 ÷ 10 = 20. The statement is true.
4
15
25% of 60 = 60 ÷ 4 = 15.
5
30
10% of 200 = 20. 5% of 200 = 10. So 15% = 20 + 10 = 30.
6
20%, 1/4, 30%, 0.35
20% = 0.20, 1/4 = 25% = 0.25, 30% = 0.30, 0.35 = 35%. Order: 20%, 25%, 30%, 35%.
7
False
75% = 75 ÷ 100 = 0.75, not 0.57. The statement is false.
8
12
100% - 60% = 40% do not walk. 40% of 30 = 30 × 0.4 = 12 children.
9
5% increase, 10% increase, 25% increase, 50% increase
5% of £40 = £2 → £42. 10% of £40 = £4 → £44. 25% of £40 = £10 → £50. 50% of £40 = £20 → £60.
10
138
10% of £120 = £12. 5% = £6. 15% = £18. New price = £120 + £18 = £138.