Keystones — Bedrock
Five GCSE retrieval questions · 22 April 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄5 + 1⁄5
Answer: 2⁄5 -
2. Algebra
Find the midpoint of (7, 5) and (16, 18)
Answer: (11.5, 11.5) -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 30:35
Answer: 6:7 -
5. Statistics
Find the mean of: 14, 14, 4, 18, 18
Answer: 13.6