Keystones — Bedrock
Five GCSE retrieval questions · 3 January 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 47 + 19
Answer: 47 + 19 = 66 -
2. Algebra
Simplify: 3x + 6x
Answer: 9x -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 20:16
Answer: 5:4 -
5. Statistics
Find the mean of: 20, 12, 11, 4, 15
Answer: 12.4