Keystones — Bedrock
Five GCSE retrieval questions · 17 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 61 + 86
Answer: 61 + 86 = 147 -
2. Algebra
Solve: x + 10 = 21
Answer: x = 11 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 12:20
Answer: 3:5 -
5. Statistics
Find the mean of: 6, 18, 3, 10
Answer: 9.25