Keystones — Bedrock
Five GCSE retrieval questions · 30 August 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 4.2 + 5
Answer: 4.2 + 5 = 9.2 -
2. Algebra
Solve: x + 13 = 31
Answer: x = 18 -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:14
Answer: 3:7 -
5. Statistics
Find the mean of: 18, 2, 12, 3
Answer: 8.75