Keystones — Cornerstone
Five GCSE retrieval questions · 13 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 76 + 80
Answer: 76 + 80 = 156 -
2. Algebra
Factorise: 6x² + 2x
Answer: 2x(3x + 1) -
3. Geometry
Find the area of a circle with radius 7cm
Answer: 153.94cm² -
4. Ratio
Simplify the ratio 16:4
Answer: 4:1 -
5. Statistics
Calculate the mean of: 19, 40, 19, 12, 41, 19, 25
Answer: 25