Keystones — Lintel
Five GCSE retrieval questions · 26 July 2013 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 960,000 in standard form
Answer: 9.6 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x - 60
Answer: (x + 6)(x - 10) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 38cm, angle = 54°. Find adjacent side. Give your answer to 2 decimal places
Answer: 22.34cm -
4. Ratio Mixed ratio problems
£140.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £80.00 -
5. Statistics Mean
Calculate the mean of: 37, 39, 47, 10, 5, 16, 27. Give your answer to 2 decimal places
Answer: 25.86