Keystones — Lintel
Five GCSE retrieval questions · 1 October 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
5000000
Answer: 5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 45°. Find opposite
Answer: 27cm -
4. Ratio Mixed ratio problems
In ratio 2:4:2, what fraction is the second part?
Answer: 4⁄8 -
5. Statistics Mean
Calculate the mean of: 23, 40, 24, 38, 26, 36, 47, 46
Answer: 35