Keystones — Lintel
Five GCSE retrieval questions · 11 March 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
3800000
Answer: 3.8 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 20
Answer: (x + 5)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 59°. Find opposite
Answer: 16.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 45, 41, 31, 6, 6, 15, 34, 48
Answer: 28.3