Keystones — Cornerstone
Five GCSE retrieval questions · 19 February 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 224, 213, and 119
Answer: 556 -
2. Algebra
Factorise: 3x² + 7x
Answer: x(3x + 7) -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 11cm and 10cm
Answer: 55cm² -
4. Ratio
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics
Find the mean of: 9, 6, 9, 9, 12
Answer: 9