Keystones — Capstone
Five GCSE retrieval questions · 1 July 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 90. What are the numbers?
Answer: 29, 30, and 31 -
2. Algebra
Find the next term: 1, 2, 4, 7, ...
Answer: 11 -
3. Geometry
Adjacent = 16cm, hypotenuse = 23cm. Find the angle
Answer: 45.9° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 33. If 4 of them are 43, 27, 27, 18, what is the missing number?
Answer: 50