Keystones — Lintel
Five GCSE retrieval questions · 20 April 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
32000000
Answer: 3.2 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 24
Answer: (x - 4)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 39°. Find adjacent side
Answer: 24.9cm -
4. Ratio Mixed ratio problems
Express the first part of 5:6 as a fraction in simplest form
Answer: 5⁄11 -
5. Statistics Mean
Calculate the mean of: 50, 35, 26, 32, 38, 9
Answer: 31.7