Keystones — Cornerstone
Five GCSE retrieval questions · 18 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 72 + 88
Answer: 72 + 88 = 160 -
2. Algebra
Expand: 4(3x + 9)
Answer: 12x + 36 -
3. Geometry
Opposite = 11cm, adjacent = 11cm. Calculate the angle
Answer: 45° -
4. Ratio
Simplify: 12:6:12
Answer: 2:1:2 -
5. Statistics
Find the range of: 20, 35, 27, 41, 30
Answer: 21