Keystones — Lintel
Five GCSE retrieval questions · 28 June 2010 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 64,000 in standard form
Answer: 6.4 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + 13x + 36
Answer: (x + 9)(x + 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 33°. Find adjacent side. Give your answer to 2 decimal places
Answer: 32.71cm -
4. Ratio Mixed ratio problems
£130.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £52.00 -
5. Statistics Mean
Calculate the mean of: 23, 12, 14, 39, 6, 23
Answer: 19.5