Keystones — Lintel
Five GCSE retrieval questions · 5 January 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 992 + 594
Answer: 1586 -
2. Algebra
Factorise fully: 25x² + 30x
Answer: 5x(5x + 6) -
3. Geometry
Adjacent = 17cm, hypotenuse = 33cm. Find the angle
Answer: 59° -
4. Ratio
Calculate 47.5% of 550
Answer: 261.25 -
5. Statistics
Calculate the mean of: 43, 21, 45, 44, 18, 38, 24
Answer: 33.3