Keystones — Capstone
Five GCSE retrieval questions · 2 June 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 141. What are the numbers?
Answer: 46, 47, and 48 -
2. Algebra
Factorise fully: 20x² + 10x
Answer: 5x(4x + 2) -
3. Geometry
Adjacent = 22cm, hypotenuse = 29cm. Find the angle
Answer: 40.7° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 2 blue and 4 green sections. Probability of landing on red?
Answer: 5⁄11