Keystones — Capstone
Five GCSE retrieval questions · 1 May 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄6 + 2⁄6 + 4⁄5
Answer: 22⁄15 -
2. Algebra
Solve: x⁄5 = 5.6
Answer: x = 28 -
3. Geometry
Adjacent = 24cm, hypotenuse = 30cm. Find the angle
Answer: 36.9° -
4. Ratio
Calculate 40.6% of 642
Answer: 260.65 -
5. Statistics
The mean of 6 numbers is 28. If 5 of them are 35, 28, 28, 41, 18, what is the missing number?
Answer: 18