Keystones — Lintel
Five GCSE retrieval questions · 11 December 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 227 + 486
Answer: 227 + 486 = 713 -
2. Algebra
Factorise: 3x² + 6x
Answer: 3x(x + 2) -
3. Geometry
Opposite = 19cm, adjacent = 20cm. Calculate the angle
Answer: 43.5° -
4. Ratio
Simplify: 9:15:6
Answer: 3:5:2 -
5. Statistics
Find the range of: -9, -16, -19, -20, 26
Answer: 46