Keystones — Lintel
Five GCSE retrieval questions · 15 April 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
91000
Answer: 9.1 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 9
Answer: (x - 3)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 40cm, angle = 48°. Find adjacent side
Answer: 26.8cm -
4. Ratio Mixed ratio problems
Divide 176 in the ratio 1:4:3
Answer: 22, 88 and 66 -
5. Statistics Mean
Calculate the mean of: 46, 45, 27, 40, 36, 14, 46
Answer: 36.3