Keystones — Cornerstone
Five GCSE retrieval questions · 2 January 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 82 + 43
Answer: 82 + 43 = 125 -
2. Algebra
Solve: x + 7 = 17
Answer: x = 10 -
3. Geometry
Calculate the area of a circle with diameter 8cm
Answer: 50.27cm² -
4. Ratio
Simplify: 10:10:8
Answer: 5:5:4 -
5. Statistics
Calculate the mean of: 21, 48, 14, 16, 48, 20, 32
Answer: 28.4