Keystones — Lintel
Five GCSE retrieval questions · 30 October 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
9700000
Answer: 9.7 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 32°. Find adjacent side
Answer: 24.6cm -
4. Ratio Mixed ratio problems
Divide 99 in the ratio 4:3:2
Answer: 44, 33 and 22 -
5. Statistics Mean
Calculate the mean of: 31, 17, 43, 44, 22, 25, 50, 36
Answer: 33.5