Keystones — Lintel
Five GCSE retrieval questions · 16 July 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0054
Answer: 5.4 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 12
Answer: (x - 2)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 26cm, angle = 26°. Find adjacent side
Answer: 23.4cm -
4. Ratio Mixed ratio problems
£280.00 is shared between A and B in the ratio 5:2. How much does A receive?
Answer: £200.00 -
5. Statistics Mean
Calculate the mean of: 19, 45, 50, 18, 14, 5, 25
Answer: 25.1