Keystones — Capstone
Five GCSE retrieval questions · 12 February 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Solve: x⁄7 = 1
Answer: x = 7 -
3. Geometry
Adjacent = 17cm, hypotenuse = 23cm. Find the angle
Answer: 42.3° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 27. If 4 of them are 28, 34, 45, 33, what is the missing number?
Answer: -5