Keystones — Lintel
Five GCSE retrieval questions · 7 February 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
20000
Answer: 2 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 5x + 6
Answer: (x - 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 28cm, angle = 26°. Find adjacent side
Answer: 25.2cm -
4. Ratio Mixed ratio problems
Simplify: 6:4:8
Answer: 3:2:4 -
5. Statistics Mean
Calculate the mean of: 7, 47, 33, 21, 30, 37
Answer: 29.2