Keystones — Cornerstone
Five GCSE retrieval questions · 20 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 33 + 34
Answer: 33 + 34 = 67 -
2. Algebra
Collect like terms: 6x + 6y + 2x + 4y
Answer: 8x + 10y -
3. Geometry
Find the area of a circle with radius 7cm
Answer: 153.94cm² -
4. Ratio
Calculate 50% of 121
Answer: 60.5 -
5. Statistics
Calculate the mean of: 50, 42, 48, 45, 27, 45, 19
Answer: 39.4