Keystones — Capstone
Five GCSE retrieval questions · 9 May 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Solve: x⁄2 = 19.5
Answer: x = 39 -
3. Geometry
Adjacent = 28cm, hypotenuse = 41cm. Find the angle
Answer: 46.9° -
4. Ratio
Calculate 44.9% of 769
Answer: 345.28 -
5. Statistics
A spinner has 4 red, 3 blue and 2 green sections. Probability of landing on red?
Answer: 4⁄9