Keystones — Lintel
Five GCSE retrieval questions · 13 July 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0034
Answer: 3.4 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 14
Answer: (x + 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 15cm, angle = 35°. Find opposite
Answer: 10.5cm -
4. Ratio Mixed ratio problems
£198.00 is shared between A and B in the ratio 2:1. How much does A receive?
Answer: £132.00 -
5. Statistics Mean
Calculate the mean of: 36, 46, 12, 13, 5, 35
Answer: 24.5