Keystones — Lintel
Five GCSE retrieval questions · 20 September 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 232, 144, and 150
Answer: 526 -
2. Algebra
Solve: 2x = 8
Answer: x = 4 -
3. Geometry
Adjacent = 16cm, hypotenuse = 32cm. Find the angle
Answer: 60° -
4. Ratio
Simplify: 12:18:9
Answer: 4:6:3 -
5. Statistics
Calculate the mean of: 41, 28, 24, 25, 12, 6, 38
Answer: 24.9