Keystones — Lintel
Five GCSE retrieval questions · 7 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
620000
Answer: 6.2 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 6)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 18cm, angle = 50°. Find adjacent side
Answer: 11.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 7, 8, 47, 6, 46, 48
Answer: 27