Keystones — Bedrock
Five GCSE retrieval questions · 27 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 13 + 40
Answer: 13 + 40 = 53 -
2. Algebra
Solve: x + 6 = 15
Answer: x = 9 -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics
Find the mean of: 3, 19, 9
Answer: 10.333333333333