Keystones — Lintel
Five GCSE retrieval questions · 5 May 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
3800000
Answer: 3.8 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 13x + 42
Answer: (x - 6)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 33cm, angle = 61°. Find adjacent side
Answer: 16cm -
4. Ratio Mixed ratio problems
Divide 176 in the ratio 1:3:4
Answer: 22, 66 and 88 -
5. Statistics Mean
Calculate the mean of: 46, 11, 44, 20, 34, 46, 6
Answer: 29.6