Keystones — Capstone
Five GCSE retrieval questions · 28 June 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 - 3x + 10y - 9y
Answer: 6x + y -
3. Geometry
Adjacent = 21cm, hypotenuse = 36cm. Find the angle
Answer: 54.3° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 3 blue and 3 green sections. Probability of landing on red?
Answer: 1⁄4