Keystones — Lintel
Five GCSE retrieval questions · 13 September 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
41000
Answer: 4.1 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 6)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 26cm, angle = 36°. Find adjacent side
Answer: 21cm -
4. Ratio Mixed ratio problems
In ratio 4:1:3, what fraction is the second part?
Answer: 1⁄8 -
5. Statistics Mean
Calculate the mean of: 44, 49, 32, 26, 11, 29
Answer: 31.8