Keystones — Capstone
Five GCSE retrieval questions · 24 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 990 + 709
Answer: 1699 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Find the distance between (-5, 2) and (10, 8)
Answer: 16.16 -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 34. If 3 of them are 24, 28, 36, what is the missing number?
Answer: 48