Keystones — Lintel
Five GCSE retrieval questions · 3 March 2013 · mathsvault.uk/keystones
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1. Number Converting to standard form
Write 5,000,000 in standard form
Answer: 5 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 7x + 10
Answer: (x + 5)(x + 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 16cm, angle = 45°. Find opposite
Answer: 16cm -
4. Ratio Mixed ratio problems
£387.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £215.00 -
5. Statistics Mean
Calculate the mean of: 42, 37, 47, 42, 50, 28
Answer: 41