Keystones — Lintel
Five GCSE retrieval questions · 3 August 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
7600000
Answer: 7.6 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 25cm, angle = 34°. Find adjacent side
Answer: 20.7cm -
4. Ratio Mixed ratio problems
In ratio 2:2:1, what fraction is the second part?
Answer: 2⁄5 -
5. Statistics Mean
Calculate the mean of: 12, 7, 35, 44, 17, 37, 43
Answer: 27.9