Keystones — Cornerstone
Five GCSE retrieval questions · 22 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 385 + 681
Answer: 385 + 681 = 1066 -
2. Algebra
Solve: 8x = 72
Answer: x = 9 -
3. Geometry
Find the area of a circle with radius 5cm
Answer: 78.54cm² -
4. Ratio
Simplify the ratio 12:8
Answer: 3:2 -
5. Statistics
Find the mean of: 3, 8, 5, 4, 12
Answer: 6.4