Keystones — Capstone
Five GCSE retrieval questions · 11 January 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 511
Answer: 1505 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 20cm, hypotenuse = 26cm. Find the angle
Answer: 39.7° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 37. If 5 of them are 39, 18, 28, 44, 34, what is the missing number?
Answer: 59