Keystones — Bedrock
Five GCSE retrieval questions · 31 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 29 + 25
Answer: 29 + 25 = 54 -
2. Algebra
Simplify: 7x + 2x
Answer: 9x -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics
Find the mean of: 14, 9, 16, 17, 15
Answer: 14.2