Keystones — Cornerstone
Five GCSE retrieval questions · 6 May 2024 · mathsvault.uk/keystones
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1. Number
Find the total of 144, 279, and 62
Answer: 485 -
2. Algebra
Factorise: 10x + 6
Answer: 2(5x + 3) -
3. Geometry
Calculate the area of a circle with diameter 8cm
Answer: 50.27cm² -
4. Ratio
Find 44% of 209
Answer: 91.96 -
5. Statistics
Calculate the mean of: 45, 11, 45, 41, 18, 43, 42
Answer: 35