Keystones — Bedrock
Five GCSE retrieval questions · 31 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 38 + 32
Answer: 38 + 32 = 70 -
2. Algebra
Simplify: 2x + 8x
Answer: 10x -
3. Geometry
Opposite = 9cm, hypotenuse = 18cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics
Find the mean of: 13, 3, 19, 20, 3
Answer: 11.6