Keystones — Lintel
Five GCSE retrieval questions · 17 October 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0053
Answer: 5.3 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 28
Answer: (x - 4)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 16cm, angle = 49°. Find adjacent side
Answer: 10.5cm -
4. Ratio Mixed ratio problems
£216.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £144.00 -
5. Statistics Mean
Calculate the mean of: 10, 34, 41, 49, 49, 10
Answer: 32.2