Keystones — Capstone
Five GCSE retrieval questions · 10 January 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Solve: x⁄5 = 7.8
Answer: x = 39 -
3. Geometry
Adjacent = 26cm, hypotenuse = 44cm. Find the angle
Answer: 53.8° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 27. If 5 of them are 35, 19, 21, 45, 40, what is the missing number?
Answer: 2