Keystones — Capstone
Five GCSE retrieval questions · 18 January 2026 · mathsvault.uk/keystones
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1. Number
Three lengths are 1.11m, 2.45m and 1.84m. What is their total length?
Answer: 5.4m -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 22cm, hypotenuse = 32cm. Find the angle
Answer: 46.6° -
4. Ratio
Calculate 36% of 743
Answer: 267.48 -
5. Statistics
The mean of 4 numbers is 27. If 3 of them are 48, 41, 37, what is the missing number?
Answer: -18