Keystones — Cornerstone
Five GCSE retrieval questions · 7 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 68
Answer: 45 + 68 = 113 -
2. Algebra
Expand: 5(4x + 9)
Answer: 20x + 45 -
3. Geometry
Opposite = 14cm, adjacent = 9cm. Calculate the angle
Answer: 57.3° -
4. Ratio
Simplify: 16:12:16
Answer: 4:3:4 -
5. Statistics
Find the mean of: 11, 3, 18, 19
Answer: 12.75