Keystones — Bedrock
Five GCSE retrieval questions · 13 March 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 25 + 15
Answer: 25 + 15 = 40 -
2. Algebra
Factorise: 15x + 6
Answer: 3(5x + 2) -
3. Geometry
Opposite = 9cm, hypotenuse = 18cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 9:6
Answer: 3:2 -
5. Statistics
Find the mean of: 17, 7, 3, 7, 11
Answer: 9