Keystones — Capstone
Five GCSE retrieval questions · 23 November 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 580
Answer: 1577 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 21cm, hypotenuse = 35cm. Find the angle
Answer: 53.1° -
4. Ratio
Calculate 20% of 960
Answer: 192 -
5. Statistics
A spinner has 4 red, 4 blue and 5 green sections. Probability of landing on red?
Answer: 4⁄13