Keystones — Capstone
Five GCSE retrieval questions · 4 January 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 99. What are the numbers?
Answer: 32, 33, and 34 -
2. Algebra
Simplify: 6x - 5x + 8y - 4y
Answer: x + 4y -
3. Geometry
Adjacent = 20cm, hypotenuse = 28cm. Find the angle
Answer: 44.4° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄4