Keystones — Lintel
Five GCSE retrieval questions · 9 June 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
58000000
Answer: 5.8 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 13x + 42
Answer: (x - 7)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 28cm, angle = 46°. Find adjacent side
Answer: 19.5cm -
4. Ratio Mixed ratio problems
£287.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £82.00 -
5. Statistics Mean
Calculate the mean of: 18, 7, 46, 12, 8, 48, 18, 33
Answer: 23.8