Keystones — Lintel
Five GCSE retrieval questions · 12 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00049
Answer: 4.9 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 5x + 6
Answer: (x - 2)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 25cm, angle = 58°. Find adjacent side
Answer: 13.2cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 16, 46, 49, 24, 50, 31
Answer: 36