Keystones — Lintel
Five GCSE retrieval questions · 16 August 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
5000000
Answer: 5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 9
Answer: (x - 3)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 14cm, angle = 39°. Find opposite
Answer: 11.3cm -
4. Ratio Mixed ratio problems
Express the first part of 3:5 as a fraction in simplest form
Answer: 3⁄8 -
5. Statistics Mean
Calculate the mean of: 18, 26, 40, 8, 7, 17
Answer: 19.3