Keystones — Lintel
Five GCSE retrieval questions · 3 November 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
26000
Answer: 2.6 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 59°. Find opposite
Answer: 16.6cm -
4. Ratio Mixed ratio problems
Express the first part of 4:2 as a fraction in simplest form
Answer: 2⁄3 -
5. Statistics Mean
Calculate the mean of: 7, 11, 37, 42, 40, 21, 11, 27
Answer: 24.5