Keystones — Bedrock
Five GCSE retrieval questions · 13 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 38
Answer: 45 + 38 = 83 -
2. Algebra
Factorise: 20x + 24
Answer: 4(5x + 6) -
3. Geometry
Opposite = 13cm, hypotenuse = 18.4cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics
Find the range of: 23, 16, 19, 12, 16
Answer: 11