Keystones — Lintel
Five GCSE retrieval questions · 11 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
3500000
Answer: 3.5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 12
Answer: (x - 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 21cm, angle = 31°. Find opposite
Answer: 12.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 23, 37, 36, 26, 48, 33, 26, 45
Answer: 34.3