Keystones — Bedrock
Five GCSE retrieval questions · 2 November 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄7 + 4⁄7
Answer: 6⁄7 -
2. Algebra
Solve: x + 6 = 21
Answer: x = 15 -
3. Geometry
Opposite = 7cm, hypotenuse = 14cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics
Find the mean of: 16, 12, 15, 11, 14
Answer: 13.6