Keystones — Capstone
Five GCSE retrieval questions · 14 June 2026 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Solve: x⁄4 = 6.5
Answer: x = 26 -
3. Geometry
Adjacent = 20cm, hypotenuse = 28cm. Find the angle
Answer: 44.4° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 32. If 3 of them are 38, 27, 37, what is the missing number?
Answer: 26