Keystones — Lintel
Five GCSE retrieval questions · 7 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 502 + 360
Answer: 502 + 360 = 862 -
2. Algebra
Factorise fully: 12x² + 12x
Answer: 3x(4x + 4) -
3. Geometry
Adjacent = 22cm, hypotenuse = 33cm. Find the angle
Answer: 48.2° -
4. Ratio
Calculate 39.7% of 994
Answer: 394.62 -
5. Statistics
Calculate the mean of: 11, 30, 12, 27, 32, 48, 7
Answer: 23.9