Keystones — Capstone
Five GCSE retrieval questions · 30 August 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 96. What are the numbers?
Answer: 31, 32, and 33 -
2. Algebra
Expand: 5(4x - 12)
Answer: 20x - 60 -
3. Geometry
Adjacent = 29cm, hypotenuse = 45cm. Find the angle
Answer: 49.9° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 34. If 4 of them are 45, 47, 46, 44, what is the missing number?
Answer: -12