AQA · Mathematics · 8300
GCSE Maths: Money: Estimation
Ratio & Proportion · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Money: Estimation (Corbettmaths Video 400), and every card links back to the exact page it came from. Practice tests generate fresh variations of these questions, so the numbers change every attempt. Source material © Corbettmaths — used with attribution.
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Estimate the cost of 6 pencils at 39p each.
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About £2.40 (round 39p to 40p: 6 × 40p = 240p).
Estimate the cost of 20 sandwiches at £2.95 each.
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About £60 (round £2.95 to £3: 20 × £3 = £60).
Estimate the total cost of 62 onions at 29p each.
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About £18 (60 × 30p = 1800p = £18).
Estimate how many £2.95 croissants were sold if nearly £89 was spent.
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About 30 (£90 ÷ £3 = 30).
Estimate the cost of one ticket if 21 tickets cost £404.25.
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About £20 (£400 ÷ 20 = £20).
Calculate exactly the cost of one ticket if 21 tickets cost £404.25.
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£19.25 (£404.25 ÷ 21).
Estimate the total cost of 41 microwaves at £108.99 and 28 kettles at £50.49.
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About £5500 (40 × £100 = £4000; 30 × £50 = £1500; £4000 + £1500 = £5500).
What percentage is 28 out of 40?
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70% (28 ÷ 40 = 0.7).
Estimate how many books at £9.09 each can be bought for £274.
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About 30 (£270 ÷ £9 = 30).
Estimate the ticket income from 39 rows of 32 seats at £19.75 each.
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About £24,000 (40 × 30 = 1200 seats; 1200 × £20 = £24,000).
Estimate the total cost of a car with a £4975 deposit and 72 monthly payments of £139.44.
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About £14,800 (£5000 + 70 × £140 = £5000 + £9800).
Estimate the yearly cost of £4.15 school dinners on 20% of 195 working days.
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About £160 (20% of 200 = 40 days; 40 × £4 = £160).
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