Keystones — Cornerstone
Five GCSE retrieval questions · 26 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 64 + 46
Answer: 64 + 46 = 110 -
2. Algebra
Factorise: 3x² + 7x
Answer: x(3x + 7) -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics
Calculate the mean of: 40, 13, 24, 21, 26, 40, 32, 7
Answer: 25.4