Keystones — Lintel
Five GCSE retrieval questions · 7 January 2017 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 960,000 in standard form
Answer: 9.6 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + 17x + 66
Answer: (x + 11)(x + 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 36cm, angle = 42°. Find adjacent side. Give your answer to 2 decimal places
Answer: 26.75cm -
4. Ratio Mixed ratio problems
£336.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £240.00 -
5. Statistics Mean
Calculate the mean of: 22, 9, 16, 43, 39, 12, 22. Give your answer to 2 decimal places
Answer: 23.29