Keystones — Bedrock
Five GCSE retrieval questions · 17 May 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 49 + 25
Answer: 49 + 25 = 74 -
2. Algebra
Solve: x + 3 = 13
Answer: x = 10 -
3. Geometry
Opposite = 10cm, hypotenuse = 11.5cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics
Find the mean of: 15, 10, 4, 12, 20
Answer: 12.2