Keystones — Capstone
Five GCSE retrieval questions · 6 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 996 + 900
Answer: 1896 -
2. Algebra
Simplify: 5x - 2x + 7y - 2y
Answer: 3x + 5y -
3. Geometry
Adjacent = 14cm, hypotenuse = 20cm. Find the angle
Answer: 45.6° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 22. If 4 of them are 39, 40, 28, 50, what is the missing number?
Answer: -47