Keystones — Lintel
Five GCSE retrieval questions · 14 March 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.016
Answer: 1.6 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 10
Answer: (x - 2)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 37cm, angle = 55°. Find adjacent side
Answer: 21.2cm -
4. Ratio Mixed ratio problems
£168.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £48.00 -
5. Statistics Mean
Calculate the mean of: 27, 19, 48, 39, 45, 26, 50, 11
Answer: 33.1