Keystones — Capstone
Five GCSE retrieval questions · 5 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 2⁄3 + 2⁄3
Answer: 5⁄3 -
2. Algebra
Solve: x⁄5 = 4.6
Answer: x = 23 -
3. Geometry
Adjacent = 24cm, hypotenuse = 38cm. Find the angle
Answer: 50.8° -
4. Ratio
Calculate 15.7% of 313
Answer: 49.14 -
5. Statistics
The mean of 4 numbers is 35. If 3 of them are 15, 50, 35, what is the missing number?
Answer: 40