Keystones — Cornerstone
Five GCSE retrieval questions · 21 April 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 8⁄10 + 1⁄10
Answer: 9⁄10 -
2. Algebra
Factorise: 4x² + 3x
Answer: x(4x + 3) -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Simplify: 12:20:8
Answer: 3:5:2 -
5. Statistics
Calculate the mean of: 33, 27, 6, 9, 25, 39
Answer: 23.2