Keystones — Bedrock
Five GCSE retrieval questions · 5 July 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 13 + 20
Answer: 13 + 20 = 33 -
2. Algebra
Factorise: 30x + 12
Answer: 6(5x + 2) -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 50% of 87
Answer: 43.5 -
5. Statistics
Find the mean of: 5, 6, 11, 8
Answer: 7.5