Keystones — Lintel
Five GCSE retrieval questions · 5 May 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0088
Answer: 8.8 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 36cm, angle = 26°. Find adjacent side
Answer: 32.4cm -
4. Ratio Mixed ratio problems
Express the first part of 5:2 as a fraction in simplest form
Answer: 5⁄7 -
5. Statistics Mean
Calculate the mean of: 26, 42, 9, 11, 12, 18
Answer: 19.7