Keystones — Lintel
Five GCSE retrieval questions · 22 August 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
75000000
Answer: 7.5 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 27cm, angle = 34°. Find opposite
Answer: 18.2cm -
4. Ratio Mixed ratio problems
£154.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £66.00 -
5. Statistics Mean
Calculate the mean of: 28, 7, 14, 9, 39, 46
Answer: 23.8