Keystones — Bedrock
Five GCSE retrieval questions · 1 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 17 + 11
Answer: 17 + 11 = 28 -
2. Algebra
Expand: 6(x + 9)
Answer: 6x + 54 -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 103
Answer: 25.75 -
5. Statistics
Find the mean of: 12, 19, 12, 3, 17
Answer: 12.6