Keystones — Cornerstone
Five GCSE retrieval questions · 28 June 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 119 + 854
Answer: 119 + 854 = 973 -
2. Algebra
Factorise: 2x² + 6x
Answer: 2x(x + 3) -
3. Geometry
Calculate the hypotenuse when a = 4cm and b = 13cm
Answer: 13.6cm -
4. Ratio
Simplify the ratio 4:10
Answer: 2:5 -
5. Statistics
Calculate the mean of: 9, 19, 36, 32, 32, 29, 21
Answer: 25.4