Keystones — Lintel
Five GCSE retrieval questions · 13 September 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
86000000
Answer: 8.6 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 16
Answer: (x - 4)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 17cm, angle = 59°. Find adjacent side
Answer: 8.8cm -
4. Ratio Mixed ratio problems
£312.00 is shared between A and B in the ratio 3:5. How much does A receive?
Answer: £117.00 -
5. Statistics Mean
Calculate the mean of: 13, 22, 19, 19, 35, 49
Answer: 26.2