Keystones — Lintel
Five GCSE retrieval questions · 4 July 2014 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 0.0097 in standard form
Answer: 9.7 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + 19x + 88
Answer: (x + 11)(x + 8) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 35cm, angle = 36°. Find adjacent side. Give your answer to 2 decimal places
Answer: 28.32cm -
4. Ratio Mixed ratio problems
£324.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £180.00 -
5. Statistics Mean
Calculate the mean of: 16, 44, 7, 36, 37, 23. Give your answer to 2 decimal places
Answer: 27.17