Keystones — Bedrock
Five GCSE retrieval questions · 10 December 2025 · mathsvault.uk/keystones
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1. Number
Round 79 to the nearest 10
Answer: 80 -
2. Algebra
Simplify: 9x + 7x
Answer: 16x -
3. Geometry
Find the area of a circle with radius 3cm
Answer: 28.27cm² -
4. Ratio
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics
Find the mean of: 18, 10, 19
Answer: 15.666666666667