Keystones — Capstone
Five GCSE retrieval questions · 15 November 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: x⁄7 = 3.2857142857143
Answer: x = 23 -
3. Geometry
Adjacent = 14cm, hypotenuse = 31cm. Find the angle
Answer: 63.2° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 3 red, 3 blue and 5 green sections. Probability of landing on red?
Answer: 3⁄11