Keystones — Bedrock
Five GCSE retrieval questions · 15 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 2 + (-2)
Answer: 0 -
2. Algebra
Factorise: 9x + 21
Answer: 3(3x + 7) -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 14:12
Answer: 7:6 -
5. Statistics
Find the mean of: 8, 8, 14, 9, 2
Answer: 8.2