Keystones — Cornerstone
Five GCSE retrieval questions · 10 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 29 + 27
Answer: 29 + 27 = 56 -
2. Algebra
Solve: x + 5 = 21
Answer: x = 16 -
3. Geometry
Find the area of a circle with radius 3cm
Answer: 28.27cm² -
4. Ratio
Find 18% of 80
Answer: 14.4 -
5. Statistics
Calculate the mean of: 6, 40, 15, 40, 15, 46
Answer: 27