Keystones — Capstone
Five GCSE retrieval questions · 3 August 2026 · mathsvault.uk/keystones
-
1. Number
Find the missing number: 2.06 + □ = 13.12
Answer: □ = 11.06 -
2. Algebra
Solve: x⁄2 = 7
Answer: x = 14 -
3. Geometry
Adjacent = 12cm, hypotenuse = 20cm. Find the angle
Answer: 53.1° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 29. If 3 of them are 35, 26, 35, what is the missing number?
Answer: 20