Keystones — Bedrock
Five GCSE retrieval questions · 24 August 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 61 + 69
Answer: 61 + 69 = 130 -
2. Algebra
Factorise: 21x + 12
Answer: 3(7x + 4) -
3. Geometry
Opposite = 7cm, hypotenuse = 8.cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 24:16
Answer: 3:2 -
5. Statistics
Find the mean of: 16, 9, 7, 17, 9
Answer: 11.6