Keystones — Lintel
Five GCSE retrieval questions · 18 June 2012 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 14,000 in standard form
Answer: 1.4 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 35
Answer: (x - 5)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 19cm, angle = 59°. Find opposite. Give your answer to 2 decimal places
Answer: 31.62cm -
4. Ratio Mixed ratio problems
£135.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £81.00 -
5. Statistics Mean
Calculate the mean of: 26, 39, 24, 37, 22, 50
Answer: 33