Keystones — Cornerstone
Five GCSE retrieval questions · 24 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 88 + 69
Answer: 88 + 69 = 157 -
2. Algebra
Simplify: 7x + 5x
Answer: 12x -
3. Geometry
Calculate the area of a circle with diameter 20cm
Answer: 314.16cm² -
4. Ratio
Simplify: 20:16:8
Answer: 5:4:2 -
5. Statistics
Find the range of: 21, 11, 8, 24, 29
Answer: 21