Keystones — Bedrock
Five GCSE retrieval questions · 6 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 90 + 34
Answer: 90 + 34 = 124 -
2. Algebra
Factorise: 12x + 24
Answer: 6(2x + 4) -
3. Geometry
Opposite = 14cm, hypotenuse = 28cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 8:32
Answer: 1:4 -
5. Statistics
Find the mean of: 5, 14, 20
Answer: 13