Keystones — Lintel
Five GCSE retrieval questions · 1 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 868 + 292
Answer: 868 + 292 = 1160 -
2. Algebra
Factorise fully: 9x² + 15x
Answer: 3x(3x + 5) -
3. Geometry
Calculate the hypotenuse when a = 12cm and b = 8cm
Answer: 14.42cm -
4. Ratio
Calculate 15% of 591
Answer: 88.65 -
5. Statistics
Calculate the mean of: 23, 12, 50, 29, 48, 5
Answer: 27.8