Keystones — Lintel
Five GCSE retrieval questions · 7 November 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0059
Answer: 5.9 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 20
Answer: (x - 5)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 31cm, angle = 44°. Find adjacent side
Answer: 22.3cm -
4. Ratio Mixed ratio problems
£224.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £140.00 -
5. Statistics Mean
Calculate the mean of: 46, 41, 17, 33, 25, 6, 41
Answer: 29.9