Keystones — Bedrock
Five GCSE retrieval questions · 30 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 79 + 20
Answer: 79 + 20 = 99 -
2. Algebra
Simplify: 6x + 2x
Answer: 8x -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics
Find the mean of: 13, 14, 16, 3
Answer: 11.5