Keystones — Bedrock
Five GCSE retrieval questions · 5 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: -3 + (-6)
Answer: -9 -
2. Algebra
Expand: 5(x + 9)
Answer: 5x + 45 -
3. Geometry
Opposite = 11cm, hypotenuse = 15.6cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 18:6
Answer: 3:1 -
5. Statistics
Find the range of: 24, 14, 8, 21, 17
Answer: 16