Keystones — Capstone
Five GCSE retrieval questions · 10 February 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Solve: x⁄2 = 20
Answer: x = 40 -
3. Geometry
Find the distance between (-5, -6) and (9, 12)
Answer: 22.8 -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄4