Keystones — Bedrock
Five GCSE retrieval questions · 12 February 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 30 + 40
Answer: 30 + 40 = 70 -
2. Algebra
Factorise: 8x + 6
Answer: 2(4x + 3) -
3. Geometry
Opposite = 11cm, hypotenuse = 15.6cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics
Find the mean of: 2, 18, 19, 7
Answer: 11.5