Keystones — Lintel
Five GCSE retrieval questions · 10 August 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
670000
Answer: 6.7 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 10
Answer: (x + 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 12cm, angle = 59°. Find opposite
Answer: 20cm -
4. Ratio Mixed ratio problems
Divide 126 in the ratio 2:3:2
Answer: 36, 54 and 36 -
5. Statistics Mean
Calculate the mean of: 26, 27, 30, 39, 34, 31, 38
Answer: 32.1