Keystones — Capstone
Five GCSE retrieval questions · 24 March 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
Solve: x⁄2 = 5
Answer: x = 10 -
3. Geometry
Find the distance between (-7, -8) and (4, 5)
Answer: 17.03 -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 35. If 4 of them are 16, 18, 37, 30, what is the missing number?
Answer: 74