Keystones — Cornerstone
Five GCSE retrieval questions · 12 April 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 189, 212, and 139
Answer: 540 -
2. Algebra
Expand: 5(5x + 8)
Answer: 25x + 40 -
3. Geometry
Calculate the area of a circle with diameter 13cm
Answer: 132.73cm² -
4. Ratio
Simplify: 8:4:12
Answer: 2:1:3 -
5. Statistics
Calculate the range of: 24, 48, 58, 54, 50, 34
Answer: 34