Keystones — Capstone
Five GCSE retrieval questions · 17 March 2026 · mathsvault.uk/keystones
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1. Number
0.084
Answer: 8.4 × 10^-2 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 17cm, hypotenuse = 27cm. Find the angle
Answer: 51° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 33. If 3 of them are 48, 27, 44, what is the missing number?
Answer: 13