Keystones — Cornerstone
Five GCSE retrieval questions · 4 August 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 67 + 20
Answer: 67 + 20 = 87 -
2. Algebra
Factorise: 24x + 28
Answer: 4(6x + 7) -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Find 79% of 336
Answer: 265.44 -
5. Statistics
Find the mean of: 17, 20, 20
Answer: 19