Keystones — Bedrock
Five GCSE retrieval questions · 1 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: -9 + 10
Answer: 1 -
2. Algebra
Simplify: 5x + 8x
Answer: 13x -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics
Find the mean of: 14, 12, 3, 8
Answer: 9.25