Keystones — Lintel
Five GCSE retrieval questions · 6 September 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
89000000
Answer: 8.9 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 24cm, angle = 38°. Find adjacent side
Answer: 18.9cm -
4. Ratio Mixed ratio problems
£296.00 is shared between A and B in the ratio 3:5. How much does A receive?
Answer: £111.00 -
5. Statistics Mean
Calculate the mean of: 46, 6, 22, 8, 38, 50
Answer: 28.3