Keystones — Lintel
Five GCSE retrieval questions · 8 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
90000
Answer: 9 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 6)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 28cm, angle = 35°. Find adjacent side
Answer: 22.9cm -
4. Ratio Mixed ratio problems
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 39, 34, 10, 10, 26, 27, 39
Answer: 26.4