Keystones — Cornerstone
Five GCSE retrieval questions · 22 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 692 + 268
Answer: 692 + 268 = 960 -
2. Algebra
Expand: 5(5x + 3)
Answer: 25x + 15 -
3. Geometry
Opposite = 11cm, adjacent = 10cm. Calculate the angle
Answer: 47.7° -
4. Ratio
Simplify: 9:18:15
Answer: 3:6:5 -
5. Statistics
Calculate the mean of: 15, 41, 32, 48, 46, 16, 41
Answer: 34.1