Keystones — Lintel
Five GCSE retrieval questions · 1 June 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 265, 204, and 138
Answer: 607 -
2. Algebra
Factorise: 3x² + 5x
Answer: x(3x + 5) -
3. Geometry
Calculate the area of a circle with diameter 21cm
Answer: 346.36cm² -
4. Ratio
Simplify: 4:4:10
Answer: 2:2:5 -
5. Statistics
Calculate the mean of: 15, 39, 8, 33, 45, 36
Answer: 29.3