Keystones — Lintel
Five GCSE retrieval questions · 23 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
6300000
Answer: 6.3 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 36
Answer: (x - 6)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 28cm, angle = 58°. Find opposite
Answer: 44.8cm -
4. Ratio Mixed ratio problems
Divide 203 in the ratio 1:3:3
Answer: 29, 87 and 87 -
5. Statistics Mean
Calculate the mean of: 39, 24, 48, 40, 47, 18, 31
Answer: 35.3