Keystones — Capstone
Five GCSE retrieval questions · 21 June 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Expand: 2(7x - 9)
Answer: 14x - 18 -
3. Geometry
Adjacent = 14cm, hypotenuse = 30cm. Find the angle
Answer: 62.2° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 4 blue and 5 green sections. Probability of landing on red?
Answer: 5⁄14