Keystones — Lintel
Five GCSE retrieval questions · 22 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 992 + 658
Answer: 1650 -
2. Algebra
Factorise: 5x² + 6x
Answer: x(5x + 6) -
3. Geometry
Adjacent = 12cm, hypotenuse = 24cm. Find the angle
Answer: 60° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 28, 10, 22, 24, 46, 28, 45
Answer: 29