Keystones — Lintel
Five GCSE retrieval questions · 16 June 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
80000
Answer: 8 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 26cm, angle = 30°. Find adjacent side
Answer: 22.5cm -
4. Ratio Mixed ratio problems
Simplify: 9:18:6
Answer: 3:6:2 -
5. Statistics Mean
Calculate the mean of: 35, 21, 13, 8, 43, 41, 32
Answer: 27.6