Keystones — Lintel
Five GCSE retrieval questions · 24 July 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 546
Answer: 1540 -
2. Algebra
Factorise: 7x² + 2x
Answer: x(7x + 2) -
3. Geometry
A circle has area 78.5cm². Find its radius (dp)
Answer: 5cm -
4. Ratio
Calculate 27.9% of 904
Answer: 252.22 -
5. Statistics
Calculate the mean of: 45, 31, 25, 33, 39, 11, 43, 34
Answer: 32.6