Keystones — Capstone
Five GCSE retrieval questions · 15 February 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 99. What are the numbers?
Answer: 32, 33, and 34 -
2. Algebra
Simplify: 5x - 2x + 4y - 3y
Answer: 3x + y -
3. Geometry
Adjacent = 12cm, hypotenuse = 22cm. Find the angle
Answer: 56.9° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 6 blue and 6 green sections. Probability of landing on red?
Answer: 1⁄5