Keystones — Lintel
Five GCSE retrieval questions · 4 January 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 59,000,000 in standard form
Answer: 5.9 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x - 60
Answer: (x + 5)(x - 12) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 30°. Find adjacent side. Give your answer to 2 decimal places
Answer: 27.71cm -
4. Ratio Mixed ratio problems
£240.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £150.00 -
5. Statistics Mean
Calculate the mean of: 16, 28, 48, 11, 31, 48. Give your answer to 2 decimal places
Answer: 30.33