Keystones — Capstone
Five GCSE retrieval questions · 13 September 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Simplify: 5x - 3x + 10y - 3y
Answer: 2x + 7y -
3. Geometry
Adjacent = 20cm, hypotenuse = 37cm. Find the angle
Answer: 57.3° -
4. Ratio
Calculate 48.5% of 597
Answer: 289.55 -
5. Statistics
A spinner has 6 red, 4 blue and 5 green sections. Probability of landing on red?
Answer: 2⁄5