Keystones — Bedrock
Five GCSE retrieval questions · 13 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 41 + 89
Answer: 41 + 89 = 130 -
2. Algebra
Factorise: 18x + 24
Answer: 6(3x + 4) -
3. Geometry
Opposite = 12cm, hypotenuse = 17cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 24:6
Answer: 4:1 -
5. Statistics
Find the range of: 19, 40, 41, 34, 26
Answer: 22