Keystones — Lintel
Five GCSE retrieval questions · 27 April 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
6700000
Answer: 6.7 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 22cm, angle = 27°. Find adjacent side
Answer: 19.6cm -
4. Ratio Mixed ratio problems
In ratio 3:4:1, what fraction is the second part?
Answer: 4⁄8 -
5. Statistics Mean
Calculate the mean of: 33, 28, 5, 25, 11, 23, 45, 5
Answer: 21.9