Keystones — Lintel
Five GCSE retrieval questions · 29 December 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
91000
Answer: 9.1 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 48
Answer: (x + 8)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 58°. Find adjacent side
Answer: 17cm -
4. Ratio Mixed ratio problems
Simplify: 18:6:12
Answer: 3:1:2 -
5. Statistics Mean
Calculate the mean of: 22, 49, 32, 27, 27, 37, 45, 32
Answer: 33.9