Keystones — Lintel
Five GCSE retrieval questions · 28 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 993 + 535
Answer: 1528 -
2. Algebra
Solve: 6x = 30
Answer: x = 5 -
3. Geometry
Calculate the area of a circle with diameter 12cm
Answer: 113.cm² -
4. Ratio
Find 69% of 369
Answer: 254.61 -
5. Statistics
Calculate the mean of: 46, 32, 6, 28, 34, 47, 36
Answer: 32.7