Keystones — Capstone
Five GCSE retrieval questions · 1 September 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 150. What are the numbers?
Answer: 49, 50, and 51 -
2. Algebra
Simplify: 8x - 5x + 3y - y
Answer: 3x + 2y -
3. Geometry
Adjacent = 13cm, hypotenuse = 30cm. Find the angle
Answer: 64.3° -
4. Ratio
Calculate 41% of 532
Answer: 218.12 -
5. Statistics
A spinner has 4 red, 5 blue and 6 green sections. Probability of landing on red?
Answer: 4⁄15