Keystones — Lintel
Five GCSE retrieval questions · 14 August 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 170 + 715
Answer: 170 + 715 = 885 -
2. Algebra
Solve: 4x + 12 = 2x - 2
Answer: x = 7 -
3. Geometry
Calculate the area of a circle with diameter 19cm
Answer: 283.53cm² -
4. Ratio
Calculate 45% of 695
Answer: 312.75 -
5. Statistics
Calculate the mean of: 50, 15, 11, 19, 44, 33, 34, 15
Answer: 27.6