Keystones — Lintel
Five GCSE retrieval questions · 27 February 2013 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 290,000,000 in standard form
Answer: 2.9 × 108 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x - 60
Answer: (x + 6)(x - 10) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 28°. Find adjacent side. Give your answer to 2 decimal places
Answer: 30.02cm -
4. Ratio Mixed ratio problems
£198.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £132.00 -
5. Statistics Mean
Calculate the mean of: 35, 46, 34, 38, 40, 29
Answer: 37