Keystones — Bedrock
Five GCSE retrieval questions · 19 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 43 + 36
Answer: 43 + 36 = 79 -
2. Algebra
Factorise: 30x + 25
Answer: 5(6x + 5) -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics
Find the mean of: 13, 9, 3, 7, 20
Answer: 10.4