Keystones — Lintel
Five GCSE retrieval questions · 27 June 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.053
Answer: 5.3 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 13cm, angle = 49°. Find opposite
Answer: 15cm -
4. Ratio Mixed ratio problems
In ratio 4:2:2, what fraction is the second part?
Answer: 2⁄8 -
5. Statistics Mean
Calculate the mean of: 27, 48, 16, 36, 41, 46
Answer: 35.7