Keystones — Lintel
Five GCSE retrieval questions · 2 June 2013 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 580,000 in standard form
Answer: 5.8 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 2x - 48
Answer: (x + 6)(x - 8) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 24cm, angle = 37°. Find opposite. Give your answer to 2 decimal places
Answer: 18.09cm -
4. Ratio Mixed ratio problems
£184.00 is shared between A and B in the ratio 3:5. How much does A receive?
Answer: £69.00 -
5. Statistics Mean
Calculate the mean of: 14, 25, 25, 6, 6, 44, 39. Give your answer to 2 decimal places
Answer: 22.71