Keystones — Lintel
Five GCSE retrieval questions · 3 July 2016 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 0.012 in standard form
Answer: 1.2 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 56
Answer: (x + 8)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 14cm, angle = 38°. Find opposite. Give your answer to 2 decimal places
Answer: 10.94cm -
4. Ratio Mixed ratio problems
£328.00 is shared between A and B in the ratio 3:5. How much does A receive?
Answer: £123.00 -
5. Statistics Mean
Calculate the mean of: 32, 48, 31, 35, 30, 30. Give your answer to 2 decimal places
Answer: 34.33