Keystones — Lintel
Five GCSE retrieval questions · 14 October 2016 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 94,000 in standard form
Answer: 9.4 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 14x + 49
Answer: (x - 7)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 18cm, angle = 48°. Find adjacent side. Give your answer to 2 decimal places
Answer: 12.04cm -
4. Ratio Mixed ratio problems
£266.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £76.00 -
5. Statistics Mean
Calculate the mean of: 30, 10, 46, 48, 41, 49. Give your answer to 2 decimal places
Answer: 37.33