Keystones — Lintel
Five GCSE retrieval questions · 21 August 2016 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 0.088 in standard form
Answer: 8.8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 90
Answer: (x + 10)(x - 9) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 23cm, angle = 53°. Find opposite. Give your answer to 2 decimal places
Answer: 30.52cm -
4. Ratio Mixed ratio problems
£336.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £210.00 -
5. Statistics Mean
Calculate the mean of: 25, 34, 36, 17, 49, 34
Answer: 32.5