Keystones — Lintel
Five GCSE retrieval questions · 4 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 322 + 344
Answer: 322 + 344 = 666 -
2. Algebra
Factorise fully: 25x² + 10x
Answer: 5x(5x + 2) -
3. Geometry
Calculate the hypotenuse when a = 10cm and b = 5cm
Answer: 11.18cm -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 33, 49, 48, 10, 7, 35
Answer: 30.3