Keystones — Lintel
Five GCSE retrieval questions · 2 August 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
18000
Answer: 1.8 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 55°. Find opposite
Answer: 14.3cm -
4. Ratio Mixed ratio problems
In ratio 4:4:2, what fraction is the second part?
Answer: 4⁄10 -
5. Statistics Mean
Calculate the mean of: 24, 7, 38, 10, 36, 11, 19
Answer: 20.7