Keystones — Bedrock
Five GCSE retrieval questions · 26 January 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 5.2 + 5.5
Answer: 5.2 + 5.5 = 10.7 -
2. Algebra
Factorise: 12x + 8
Answer: 4(3x + 2) -
3. Geometry
Find the area of a circle with radius 10cm
Answer: 314.16cm² -
4. Ratio
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics
What is the probability of rolling a 6 on a fair die?
Answer: 1⁄6