Keystones — Bedrock
Five GCSE retrieval questions · 3 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 25 + 47
Answer: 25 + 47 = 72 -
2. Algebra
Simplify: 7x + 6x
Answer: 13x -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 28:20
Answer: 7:5 -
5. Statistics
Find the mean of: 9, 19, 16, 15, 10
Answer: 13.8