Keystones — Lintel
Five GCSE retrieval questions · 2 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
4600000
Answer: 4.6 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 10
Answer: (x + 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 54°. Find adjacent side
Answer: 17cm -
4. Ratio Mixed ratio problems
Divide 224 in the ratio 4:1:3
Answer: 112, 28 and 84 -
5. Statistics Mean
Calculate the mean of: 43, 34, 46, 42, 23, 8, 14
Answer: 30