Keystones — Cornerstone
Five GCSE retrieval questions · 9 February 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 68 + 37
Answer: 68 + 37 = 105 -
2. Algebra
Simplify: 9x + 7x
Answer: 16x -
3. Geometry
Calculate the area of a circle with diameter 20cm
Answer: 314.16cm² -
4. Ratio
Simplify: 12:4:4
Answer: 3:1:1 -
5. Statistics
Find the mean of: 16, 7, 3, 16
Answer: 10.5