Keystones — Lintel
Five GCSE retrieval questions · 18 October 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.064
Answer: 6.4 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 13x + 42
Answer: (x - 6)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 38cm, angle = 30°. Find adjacent side
Answer: 32.9cm -
4. Ratio Mixed ratio problems
£180.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £120.00 -
5. Statistics Mean
Calculate the mean of: 35, 49, 46, 39, 31, 46
Answer: 41