Keystones — Capstone
Five GCSE retrieval questions · 12 December 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 108. What are the numbers?
Answer: 35, 36, and 37 -
2. Algebra
Solve: x⁄2 = 14
Answer: x = 28 -
3. Geometry
Adjacent = 16cm, hypotenuse = 30cm. Find the angle
Answer: 57.8° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 21. If 3 of them are 16, 46, 32, what is the missing number?
Answer: -10