Keystones — Cornerstone
Five GCSE retrieval questions · 25 September 2025 · mathsvault.uk/keystones
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1. Number
Find the total of 111, 181, and 92
Answer: 384 -
2. Algebra
Expand: 2(x + 5)
Answer: 2x + 10 -
3. Geometry
Calculate the area of a circle with diameter 19cm
Answer: 283.53cm² -
4. Ratio
Calculate 50% of 30
Answer: 15 -
5. Statistics
Find the mean of: 6, 2, 14, 6
Answer: 7