Keystones — Capstone
Five GCSE retrieval questions · 25 March 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 3⁄4 + 2⁄3
Answer: 23⁄12 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 28cm, hypotenuse = 34cm. Find the angle
Answer: 34.6° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 38. If 4 of them are 15, 38, 32, 33, what is the missing number?
Answer: 72