Keystones — Capstone
Five GCSE retrieval questions · 14 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 877
Answer: 1876 -
2. Algebra
Simplify: 7x - 6x + 9y - 7y
Answer: x + 2y -
3. Geometry
Adjacent = 13cm, hypotenuse = 22cm. Find the angle
Answer: 53.8° -
4. Ratio
Calculate 27.3% of 538
Answer: 146.87 -
5. Statistics
A spinner has 4 red, 3 blue and 2 green sections. Probability of landing on red?
Answer: 4⁄9