Keystones — Bedrock
Five GCSE retrieval questions · 28 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 12 + 12
Answer: 12 + 12 = 24 -
2. Algebra
Solve: x + 9 = 19
Answer: x = 10 -
3. Geometry
Opposite = 9cm, hypotenuse = 18cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 50
Answer: 12.5 -
5. Statistics
Find the range of: 10, 11, 29, 33, 23
Answer: 23