Keystones — Lintel
Five GCSE retrieval questions · 17 April 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 948 + 922
Answer: 948 + 922 = 1870 -
2. Algebra
Factorise: 4x² + 8x
Answer: 4x(x + 2) -
3. Geometry
Calculate perimeter: two sides are 7cm and 11cm at right angles
Answer: 31cm -
4. Ratio
Simplify: 8:20:24
Answer: 2:5:6 -
5. Statistics
Calculate the mean of: 43, 10, 23, 22, 38, 46
Answer: 30.3