Keystones — Capstone
Five GCSE retrieval questions · 24 August 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Simplify: 9x - 4x + 9y - 3y
Answer: 5x + 6y -
3. Geometry
Adjacent = 30cm, hypotenuse = 37cm. Find the angle
Answer: 35.8° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 6 blue and 5 green sections. Probability of landing on red?
Answer: 4⁄15