Keystones — Capstone
Five GCSE retrieval questions · 23 February 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 7.18 + 91.68 + 0.546
Answer: 7.18 + 91.68 + 0.546 = 99.406 -
2. Algebra
Solve: x⁄8 = 2.875
Answer: x = 23 -
3. Geometry
Adjacent = 15cm, hypotenuse = 27cm. Find the angle
Answer: 56.3° -
4. Ratio
Calculate 41.8% of 551
Answer: 230.32 -
5. Statistics
The mean of 6 numbers is 21. If 5 of them are 24, 24, 23, 47, 29, what is the missing number?
Answer: -21