Keystones — Lintel
Five GCSE retrieval questions · 12 June 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
56000000
Answer: 5.6 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 24
Answer: (x + 6)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 11cm, angle = 41°. Find opposite
Answer: 9.6cm -
4. Ratio Mixed ratio problems
In ratio 3:3:1, what fraction is the second part?
Answer: 3⁄7 -
5. Statistics Mean
Calculate the mean of: 34, 50, 10, 25, 17, 22, 37, 30
Answer: 28.1