Keystones — Lintel
Five GCSE retrieval questions · 30 March 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
850000
Answer: 8.5 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 6)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 23cm, angle = 61°. Find adjacent side
Answer: 11.2cm -
4. Ratio Mixed ratio problems
£162.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £108.00 -
5. Statistics Mean
Calculate the mean of: 11, 10, 17, 12, 43, 19, 17
Answer: 18.4