Keystones — Lintel
Five GCSE retrieval questions · 14 March 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
940000
Answer: 9.4 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 35
Answer: (x - 7)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 21cm, angle = 35°. Find adjacent side
Answer: 17.2cm -
4. Ratio Mixed ratio problems
£423.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £235.00 -
5. Statistics Mean
Calculate the mean of: 45, 45, 36, 8, 50, 50, 33
Answer: 38.1