Keystones — Capstone
Five GCSE retrieval questions · 26 July 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Solve: x⁄2 = 15.5
Answer: x = 31 -
3. Geometry
Adjacent = 23cm, hypotenuse = 28cm. Find the angle
Answer: 34.8° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 3⁄11