Keystones — Cornerstone
Five GCSE retrieval questions · 5 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 44 + 34
Answer: 44 + 34 = 78 -
2. Algebra
Expand: 9(x + 7)
Answer: 9x + 63 -
3. Geometry
Opposite = 16cm, adjacent = 20cm. Calculate the angle
Answer: 38.7° -
4. Ratio
Simplify: 6:12:12
Answer: 1:2:2 -
5. Statistics
Calculate the mean of: 43, 17, 11, 39, 17, 11
Answer: 23