Keystones — Capstone
Five GCSE retrieval questions · 6 November 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 111. What are the numbers?
Answer: 36, 37, and 38 -
2. Algebra
Find the next term: 1, 4, 10, 19, ...
Answer: 31 -
3. Geometry
Adjacent = 15cm, hypotenuse = 23cm. Find the angle
Answer: 49.3° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 4 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄2