Keystones — Cornerstone
Five GCSE retrieval questions · 3 November 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 30 + 31
Answer: 30 + 31 = 61 -
2. Algebra
Solve: 3x = 12
Answer: x = 4 -
3. Geometry
Calculate the area of a circle with diameter 21cm
Answer: 346.36cm² -
4. Ratio
Simplify: 8:24:16
Answer: 1:3:2 -
5. Statistics
Find the mean of: 5, 17, 18, 7, 8
Answer: 11