Keystones — Capstone
Five GCSE retrieval questions · 21 April 2026 · 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
Expand: 4(4x - 9)
Answer: 16x - 36 -
3. Geometry
Adjacent = 19cm, hypotenuse = 24cm. Find the angle
Answer: 37.7° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 2 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄4