Keystones — Lintel
Five GCSE retrieval questions · 5 March 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
2900000
Answer: 2.9 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 4)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 49°. Find adjacent side
Answer: 19cm -
4. Ratio Mixed ratio problems
In ratio 2:4:3, what fraction is the second part?
Answer: 4⁄9 -
5. Statistics Mean
Calculate the mean of: 25, 19, 10, 34, 41, 13, 10, 19
Answer: 21.4