Keystones — Lintel
Five GCSE retrieval questions · 28 May 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.022
Answer: 2.2 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 8
Answer: (x + 4)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 11cm, angle = 54°. Find opposite
Answer: 15.cm -
4. Ratio Mixed ratio problems
£182.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £104.00 -
5. Statistics Mean
Calculate the mean of: 19, 42, 11, 10, 25, 41
Answer: 24.7