Keystones — Lintel
Five GCSE retrieval questions · 9 April 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
6700000
Answer: 6.7 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 10
Answer: (x + 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 17cm, angle = 40°. Find opposite
Answer: 14.3cm -
4. Ratio Mixed ratio problems
£432.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £240.00 -
5. Statistics Mean
Calculate the mean of: 31, 43, 36, 31, 9, 35
Answer: 30.8