Keystones — Cornerstone
Five GCSE retrieval questions · 21 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 41 + 32
Answer: 41 + 32 = 73 -
2. Algebra
Simplify: 2x + 8x
Answer: 10x -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Simplify the ratio 24:18
Answer: 4:3 -
5. Statistics
Calculate the mean of: 31, 40, 43, 40, 6, 14, 20, 35
Answer: 28.6