Keystones — Lintel
Five GCSE retrieval questions · 8 December 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
300000
Answer: 3 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 10
Answer: (x - 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 28cm, angle = 32°. Find adjacent side
Answer: 23.7cm -
4. Ratio Mixed ratio problems
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 30, 16, 37, 47, 19, 14, 20
Answer: 26.1