Keystones — Lintel
Five GCSE retrieval questions · 10 February 2013 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 470,000 in standard form
Answer: 4.7 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x - 33
Answer: (x + 3)(x - 11) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 56°. Find adjacent side. Give your answer to 2 decimal places
Answer: 19.01cm -
4. Ratio Mixed ratio problems
£270.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £150.00 -
5. Statistics Mean
Calculate the mean of: 30, 48, 34, 37, 30, 50. Give your answer to 2 decimal places
Answer: 38.17