Keystones — Lintel
Five GCSE retrieval questions · 6 July 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
46000
Answer: 4.6 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 11cm, angle = 60°. Find opposite
Answer: 19.cm -
4. Ratio Mixed ratio problems
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 37, 41, 39, 22, 13, 5
Answer: 26.2