Keystones — Lintel
Five GCSE retrieval questions · 28 August 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
69000000
Answer: 6.9 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 13x + 42
Answer: (x - 7)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 29°. Find adjacent side
Answer: 28cm -
4. Ratio Mixed ratio problems
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 8, 13, 6, 28, 23, 35
Answer: 18.8