Keystones — Lintel
Five GCSE retrieval questions · 3 July 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
51000
Answer: 5.1 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 4)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 45°. Find adjacent side
Answer: 22.6cm -
4. Ratio Mixed ratio problems
In ratio 2:3:1, what fraction is the second part?
Answer: 3⁄6 -
5. Statistics Mean
Calculate the mean of: 30, 20, 43, 17, 47, 27
Answer: 30.7