Keystones — Bedrock
Five GCSE retrieval questions · 22 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 8 + (-6)
Answer: 2 -
2. Algebra
Solve: x + 6 = 18
Answer: x = 12 -
3. Geometry
Opposite = 5cm, hypotenuse = 10cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 50% of 94
Answer: 47 -
5. Statistics
Find the mean of: 7, 15, 18, 3, 12
Answer: 11