Keystones — Bedrock
Five GCSE retrieval questions · 30 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 10 + (-2)
Answer: 8 -
2. Algebra
Factorise: 9x + 6
Answer: 3(3x + 2) -
3. Geometry
Opposite = 13cm, hypotenuse = 18.4cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics
Find the median of: 6, 12, 20, 16, 12
Answer: 12