Keystones — Bedrock
Five GCSE retrieval questions · 22 December 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 20 + 35
Answer: 20 + 35 = 55 -
2. Algebra
Factorise: 24x + 42
Answer: 6(4x + 7) -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics
Find the mean of: 6, 15, 16, 11
Answer: 12