Keystones — Lintel
Five GCSE retrieval questions · 26 January 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
80000
Answer: 8 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 24cm, angle = 36°. Find adjacent side
Answer: 19.4cm -
4. Ratio Mixed ratio problems
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 38, 9, 30, 25, 37, 25, 28, 46
Answer: 29.8