Keystones — Bedrock
Five GCSE retrieval questions · 1 October 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 22 + 27
Answer: 22 + 27 = 49 -
2. Algebra
Factorise: 12x + 32
Answer: 4(3x + 8) -
3. Geometry
Opposite = 12cm, hypotenuse = 17cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 20:10
Answer: 2:1 -
5. Statistics
Find the mean of: 8, 12, 6, 6, 4
Answer: 7.2