Keystones — Bedrock
Five GCSE retrieval questions · 4 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 9 + 2.7
Answer: 9 + 2.7 = 11.7 -
2. Algebra
Factorise: 25x + 15
Answer: 5(5x + 3) -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Simplify the ratio 24:28
Answer: 6:7 -
5. Statistics
Find the mean of: 6, 8, 3, 13
Answer: 7.5