Keystones — Capstone
Five GCSE retrieval questions · 6 January 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: x⁄4 = 9.75
Answer: x = 39 -
3. Geometry
Adjacent = 26cm, hypotenuse = 46cm. Find the angle
Answer: 55.6° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄5