Keystones — Lintel
Five GCSE retrieval questions · 27 May 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.037
Answer: 3.7 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 33cm, angle = 58°. Find adjacent side
Answer: 17.5cm -
4. Ratio Mixed ratio problems
Simplify: 16:20:24
Answer: 4:5:6 -
5. Statistics Mean
Calculate the mean of: 39, 10, 5, 34, 16, 5, 46
Answer: 22.1