Keystones — Bedrock
Five GCSE retrieval questions · 17 July 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 9 + (-1)
Answer: 8 -
2. Algebra
Simplify: 3x + 8x
Answer: 11x -
3. Geometry
Opposite = 7cm, hypotenuse = 8.cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics
Find the mean of: 13, 20, 12
Answer: 15