Keystones — Lintel
Five GCSE retrieval questions · 29 November 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.084
Answer: 8.4 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 28cm, angle = 32°. Find opposite
Answer: 17.5cm -
4. Ratio Mixed ratio problems
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 38, 36, 5, 23, 29, 40
Answer: 28.5