Keystones — Capstone
Five GCSE retrieval questions · 26 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 1⁄2 + 1⁄2
Answer: 4⁄3 -
2. Algebra
Solve: x⁄6 = 4.5
Answer: x = 27 -
3. Geometry
Adjacent = 13cm, hypotenuse = 30cm. Find the angle
Answer: 64.3° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 35. If 5 of them are 21, 39, 28, 45, 32, what is the missing number?
Answer: 45