Keystones — Lintel
Five GCSE retrieval questions · 10 June 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
48000
Answer: 4.8 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 6)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 40cm, angle = 29°. Find adjacent side
Answer: 35cm -
4. Ratio Mixed ratio problems
Divide 120 in the ratio 4:3:1
Answer: 60, 45 and 15 -
5. Statistics Mean
Calculate the mean of: 5, 11, 18, 47, 17, 22, 10, 50
Answer: 22.5