Keystones — Lintel
Five GCSE retrieval questions · 11 October 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00054
Answer: 5.4 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 55°. Find adjacent side
Answer: 19.5cm -
4. Ratio Mixed ratio problems
£441.00 is shared between A and B in the ratio 4:5. How much does A receive?
Answer: £196.00 -
5. Statistics Mean
Calculate the mean of: 11, 45, 33, 25, 41, 32
Answer: 31.2