Keystones — Lintel
Five GCSE retrieval questions · 12 December 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
89000
Answer: 8.9 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 36
Answer: (x - 6)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 40cm, angle = 59°. Find adjacent side
Answer: 20.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 31, 8, 41, 46, 40, 21, 37, 41
Answer: 33.1