Keystones — Capstone
Five GCSE retrieval questions · 28 February 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Expand: 4(6x - 6)
Answer: 24x - 24 -
3. Geometry
Adjacent = 28cm, hypotenuse = 36cm. Find the angle
Answer: 38.9° -
4. Ratio
Calculate 30.8% of 762
Answer: 234.7 -
5. Statistics
A spinner has 5 red, 2 blue and 4 green sections. Probability of landing on red?
Answer: 5⁄11