Keystones — Bedrock
Five GCSE retrieval questions · 12 February 2024 · mathsvault.uk/keystones
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1. Number
Calculate: -4 + (-1)
Answer: -5 -
2. Algebra
Simplify: 9x + 9x
Answer: 18x -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics
Find the mean of: 9, 5, 17, 7, 8
Answer: 9.2