Keystones — Cornerstone
Five GCSE retrieval questions · 24 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 96 + 53
Answer: 96 + 53 = 149 -
2. Algebra
Factorise: 2x² + 4x
Answer: 2x(x + 2) -
3. Geometry
Opposite = 19cm, adjacent = 11cm. Calculate the angle
Answer: 59.9° -
4. Ratio
Simplify the ratio 6:8
Answer: 3:4 -
5. Statistics
Find the mean of: 20, 18, 20, 5, 6
Answer: 13.8