Keystones — Lintel
Five GCSE retrieval questions · 3 October 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
3500000
Answer: 3.5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 42
Answer: (x + 7)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 12cm, angle = 55°. Find opposite
Answer: 17.cm -
4. Ratio Mixed ratio problems
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 32, 45, 13, 32, 37, 42, 34
Answer: 33.6