Keystones — Lintel
Five GCSE retrieval questions · 27 February 2015 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 0.006 in standard form
Answer: 6 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - x - 132
Answer: (x + 11)(x - 12) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 19cm, angle = 48°. Find adjacent side. Give your answer to 2 decimal places
Answer: 12.71cm -
4. Ratio Mixed ratio problems
£168.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £72.00 -
5. Statistics Mean
Calculate the mean of: 18, 37, 41, 45, 8, 48. Give your answer to 2 decimal places
Answer: 32.83