Keystones — Bedrock
Five GCSE retrieval questions · 17 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 17
Answer: 45 + 17 = 62 -
2. Algebra
Expand: 6(x + 5)
Answer: 6x + 30 -
3. Geometry
Opposite = 7cm, hypotenuse = 14cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 18:12
Answer: 3:2 -
5. Statistics
Find the mean of: 10, 4, 15, 5
Answer: 8.5