Keystones — Lintel
Five GCSE retrieval questions · 5 August 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
86000000
Answer: 8.6 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 4
Answer: (x + 4)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 10cm, angle = 58°. Find opposite
Answer: 16cm -
4. Ratio Mixed ratio problems
Divide 210 in the ratio 1:2:4
Answer: 30, 60 and 120 -
5. Statistics Mean
Calculate the mean of: 37, 23, 10, 39, 34, 23, 45
Answer: 30.1