Keystones — Bedrock
Five GCSE retrieval questions · 2 June 2023 · mathsvault.uk/keystones
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1. Number
30000
Answer: 3 × 104 -
2. Algebra
Factorise: 30x + 25
Answer: 5(6x + 5) -
3. Geometry
Find the area of a circle with radius 10cm
Answer: 314.16cm² -
4. Ratio
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics
Find the mean of: 10, 8, 20, 9
Answer: 11.75