Keystones — Lintel
Five GCSE retrieval questions · 18 September 2014 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 930,000 in standard form
Answer: 9.3 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 20x + 96
Answer: (x - 8)(x - 12) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 26cm, angle = 30°. Find opposite. Give your answer to 2 decimal places
Answer: 15.01cm -
4. Ratio Mixed ratio problems
£240.00 is shared between A and B in the ratio 1:2. How much does A receive?
Answer: £80.00 -
5. Statistics Mean
Calculate the mean of: 36, 7, 22, 41, 6, 30. Give your answer to 2 decimal places
Answer: 23.67