Keystones — Lintel
Five GCSE retrieval questions · 4 May 2026 · mathsvault.uk/keystones
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1. Number
Find the total of 152, 253, and 54
Answer: 459 -
2. Algebra
Factorise: 6x² + 3x
Answer: 3x(2x + 1) -
3. Geometry
Opposite = 9cm, adjacent = 10cm. Calculate the angle
Answer: 42° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
Find the range of: 23, -27, 50, 50, 39
Answer: 77