Keystones — Cornerstone
Five GCSE retrieval questions · 17 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 49 + 70
Answer: 49 + 70 = 119 -
2. Algebra
Solve: 8x = 40
Answer: x = 5 -
3. Geometry
Calculate the area of a circle with diameter 12cm
Answer: 113.cm² -
4. Ratio
Calculate 10% of 96
Answer: 9.6 -
5. Statistics
Calculate the mean of: 11, 34, 19, 26, 25, 32, 22
Answer: 24.1