Keystones — Lintel
Five GCSE retrieval questions · 6 June 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0052
Answer: 5.2 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 28
Answer: (x - 4)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 26cm, angle = 47°. Find adjacent side
Answer: 17.7cm -
4. Ratio Mixed ratio problems
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 36, 46, 34, 27, 24, 20, 44, 15
Answer: 30.8