Keystones — Bedrock
Five GCSE retrieval questions · 7 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 4⁄9 + 4⁄9
Answer: 8⁄9 -
2. Algebra
Find the midpoint of (2, 6) and (16, 15)
Answer: (9, 10.5) -
3. Geometry
Opposite = 15cm, hypotenuse = 30cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics
Find the range of: 19, 20, 13, 16, 29
Answer: 16