Keystones — Capstone
Five GCSE retrieval questions · 8 August 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Solve: x⁄2 = 8
Answer: x = 16 -
3. Geometry
Adjacent = 25cm, hypotenuse = 34cm. Find the angle
Answer: 42.7° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 38. If 5 of them are 49, 33, 34, 42, 50, what is the missing number?
Answer: 20