Keystones — Lintel
Five GCSE retrieval questions · 2 January 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
520000
Answer: 5.2 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 6
Answer: (x + 6)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 36cm, angle = 59°. Find adjacent side
Answer: 18.5cm -
4. Ratio Mixed ratio problems
In ratio 2:2:4, what fraction is the second part?
Answer: 2⁄8 -
5. Statistics Mean
Calculate the mean of: 39, 14, 11, 33, 21, 14, 36
Answer: 24