Keystones — Capstone
Five GCSE retrieval questions · 7 July 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 24cm, hypotenuse = 30cm. Find the angle
Answer: 36.9° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 31. If 4 of them are 20, 20, 46, 18, what is the missing number?
Answer: 51