Keystones — Lintel
Five GCSE retrieval questions · 18 May 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
4300000
Answer: 4.3 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 10
Answer: (x - 2)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 17cm, angle = 36°. Find adjacent side
Answer: 13.8cm -
4. Ratio Mixed ratio problems
In ratio 4:1:4, what fraction is the second part?
Answer: 1⁄9 -
5. Statistics Mean
Calculate the mean of: 17, 12, 38, 5, 19, 11
Answer: 17