Keystones — Bedrock
Five GCSE retrieval questions · 18 August 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 63 + 36
Answer: 63 + 36 = 99 -
2. Algebra
Factorise: 36x + 42
Answer: 6(6x + 7) -
3. Geometry
Opposite = 11cm, hypotenuse = 15.6cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 12:20
Answer: 3:5 -
5. Statistics
Find the mean of: 8, 12, 7, 4, 14
Answer: 9