Keystones — Lintel
Five GCSE retrieval questions · 6 May 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
410000
Answer: 4.1 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 18cm, angle = 61°. Find adjacent side
Answer: 8.7cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 30, 9, 16, 24, 48, 16, 22, 6
Answer: 21.4