Keystones — Lintel
Five GCSE retrieval questions · 31 March 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.08
Answer: 8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 10
Answer: (x + 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 34°. Find opposite
Answer: 6.7cm -
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: 44, 10, 35, 45, 22, 19
Answer: 29.2