Keystones — Lintel
Five GCSE retrieval questions · 25 January 2017 · 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 + 5x - 36
Answer: (x + 9)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 34°. Find adjacent side. Give your answer to 2 decimal places
Answer: 28.19cm -
4. Ratio Mixed ratio problems
£352.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £220.00 -
5. Statistics Mean
Calculate the mean of: 47, 15, 25, 35, 6, 18. Give your answer to 2 decimal places
Answer: 24.33