Keystones — Bedrock
Five GCSE retrieval questions · 23 February 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 35 + 98
Answer: 35 + 98 = 133 -
2. Algebra
Factorise: 20x + 28
Answer: 4(5x + 7) -
3. Geometry
Find the area of a circle with radius 6cm
Answer: 113.cm² -
4. Ratio
Simplify the ratio 10:4
Answer: 5:2 -
5. Statistics
Find the mean of: 10, 8, 20
Answer: 12.666666666667