Keystones — Lintel
Five GCSE retrieval questions · 17 June 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 173 + 163
Answer: 173 + 163 = 336 -
2. Algebra
Factorise fully: 12x² + 24x
Answer: 4x(3x + 6) -
3. Geometry
Calculate the hypotenuse when a = 11cm and b = 12cm
Answer: 16.28cm -
4. Ratio
Calculate 23.5% of 587
Answer: 137.95 -
5. Statistics
Find the range of: 38, 12, 42, 12, -28
Answer: 70