Keystones — Capstone
Five GCSE retrieval questions · 13 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 4⁄5 + 3⁄4 + 4⁄6
Answer: 133⁄60 -
2. Algebra
Solve: x⁄4 = 3
Answer: x = 12 -
3. Geometry
Adjacent = 28cm, hypotenuse = 33cm. Find the angle
Answer: 32° -
4. Ratio
Calculate 20.4% of 380
Answer: 77.52 -
5. Statistics
The mean of 4 numbers is 38. If 3 of them are 46, 37, 30, what is the missing number?
Answer: 39