Keystones — Cornerstone
Five GCSE retrieval questions · 17 August 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 26 + 70
Answer: 26 + 70 = 96 -
2. Algebra
Simplify: 7x + 7x
Answer: 14x -
3. Geometry
Calculate the area of a circle with diameter 10cm
Answer: 78.54cm² -
4. Ratio
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics
Find the mean of: 20, 16, 8, 9, 8
Answer: 12.2