Keystones — Lintel
Five GCSE retrieval questions · 16 November 2013 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 370,000,000 in standard form
Answer: 3.7 × 108 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 14
Answer: (x + 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 16cm, angle = 54°. Find opposite. Give your answer to 2 decimal places
Answer: 22.02cm -
4. Ratio Mixed ratio problems
£300.00 is shared between A and B in the ratio 1:2. How much does A receive?
Answer: £100.00 -
5. Statistics Mean
Calculate the mean of: 46, 33, 9, 40, 22, 49. Give your answer to 2 decimal places
Answer: 33.17