Keystones — Capstone
Five GCSE retrieval questions · 12 March 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 123. What are the numbers?
Answer: 40, 41, and 42 -
2. Algebra
Simplify: 10x - 3x + 10y - 6y
Answer: 7x + 4y -
3. Geometry
Adjacent = 30cm, hypotenuse = 46cm. Find the angle
Answer: 49.3° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 2⁄5