Keystones — Cornerstone
Five GCSE retrieval questions · 12 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 38 + 61
Answer: 38 + 61 = 99 -
2. Algebra
Solve: 10x - 11 = 7x + 10
Answer: x = 7 -
3. Geometry
Calculate the area of a circle with diameter 19cm
Answer: 283.53cm² -
4. Ratio
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics
Calculate the range of: 102, 102, 118, 117, 119, 43
Answer: 76