Keystones — Capstone
Five GCSE retrieval questions · 13 August 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 99. What are the numbers?
Answer: 32, 33, and 34 -
2. Algebra
Solve: x⁄2 = 3
Answer: x = 6 -
3. Geometry
Adjacent = 30cm, hypotenuse = 50cm. Find the angle
Answer: 53.1° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 26. If 4 of them are 24, 42, 37, 30, what is the missing number?
Answer: -3