Keystones — Bedrock
Five GCSE retrieval questions · 26 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 10 + 3 × 5
Answer: 25 -
2. Algebra
Simplify: 4x + 9x
Answer: 13x -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics
Find the mean of: 3, 10, 3, 17, 20
Answer: 10.6