Keystones — Bedrock
Five GCSE retrieval questions · 27 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 19 + 49
Answer: 19 + 49 = 68 -
2. Algebra
Expand: 2(x + 9)
Answer: 2x + 18 -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:10
Answer: 3:5 -
5. Statistics
Find the mean of: 10, 3, 9
Answer: 7.3333333333333