Keystones — Lintel
Five GCSE retrieval questions · 30 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
66000
Answer: 6.6 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 8
Answer: (x + 4)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 22cm, angle = 43°. Find adjacent side
Answer: 16.cm -
4. Ratio Mixed ratio problems
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 43, 25, 13, 46, 34, 46
Answer: 34.5