Keystones — Bedrock
Five GCSE retrieval questions · 19 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 39 + 28
Answer: 39 + 28 = 67 -
2. Algebra
Simplify: 7x + 2x
Answer: 9x -
3. Geometry
Opposite = 14cm, hypotenuse = 28cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics
Find the mean of: 15, 18, 13, 15, 15
Answer: 15.2