Keystones — Bedrock
Five GCSE retrieval questions · 4 August 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 31 + 78
Answer: 31 + 78 = 109 -
2. Algebra
Solve: x + 6 = 20
Answer: x = 14 -
3. Geometry
Opposite = 9cm, hypotenuse = 12.7cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 20:25
Answer: 4:5 -
5. Statistics
Find the median of: 14, 9, 13, 13, 9
Answer: 13