Keystones — Cornerstone
Five GCSE retrieval questions · 30 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 50 + 64
Answer: 50 + 64 = 114 -
2. Algebra
For y = x³, find y when x = 4
Answer: y = 64 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 12cm and 11cm
Answer: 66cm² -
4. Ratio
Simplify the ratio 6:4
Answer: 3:2 -
5. Statistics
Find the mean of: 3, 5, 9, 8
Answer: 6.25