Keystones — Lintel
Five GCSE retrieval questions · 13 December 2014 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 68,000 in standard form
Answer: 6.8 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 37cm, angle = 62°. Find adjacent side. Give your answer to 2 decimal places
Answer: 17.37cm -
4. Ratio Mixed ratio problems
£235.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £141.00 -
5. Statistics Mean
Calculate the mean of: 39, 42, 49, 5, 44, 23, 20, 41. Give your answer to 2 decimal places
Answer: 32.88