Keystones — Capstone
Five GCSE retrieval questions · 20 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 743
Answer: 1742 -
2. Algebra
Solve: x⁄3 = 7
Answer: x = 21 -
3. Geometry
Adjacent = 21cm, hypotenuse = 30cm. Find the angle
Answer: 45.6° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 31. If 4 of them are 48, 23, 44, 35, what is the missing number?
Answer: 5