Keystones — Cornerstone
Five GCSE retrieval questions · 10 June 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 64 + 21
Answer: 64 + 21 = 85 -
2. Algebra
Factorise: 2x² + 7x
Answer: x(2x + 7) -
3. Geometry
Calculate the distance between (6, 3) and (9, 7)
Answer: 5 -
4. Ratio
Calculate 10% of 57
Answer: 5.7 -
5. Statistics
Calculate the mean of: 24, 8, 6, 39, 44, 6, 7
Answer: 19.1