Keystones — Lintel
Five GCSE retrieval questions · 21 June 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
5100000
Answer: 5.1 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 27cm, angle = 34°. Find adjacent side
Answer: 22.4cm -
4. Ratio Mixed ratio problems
Divide 88 in the ratio 2:1:1
Answer: 44, 22 and 22 -
5. Statistics Mean
Calculate the mean of: 26, 6, 39, 39, 41, 24, 19, 23
Answer: 27.1