Keystones — Lintel
Five GCSE retrieval questions · 21 April 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0016
Answer: 1.6 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 36°. Find adjacent side
Answer: 27.5cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 18, 38, 33, 20, 7, 35, 47, 14
Answer: 26.5