Keystones — Bedrock
Five GCSE retrieval questions · 15 June 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 39 + 45
Answer: 39 + 45 = 84 -
2. Algebra
Solve: x + 7 = 21
Answer: x = 14 -
3. Geometry
Opposite = 10cm, hypotenuse = 14.cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 14:16
Answer: 7:8 -
5. Statistics
Find the mean of: 20, 17, 9, 7, 13
Answer: 13.2