Keystones — Lintel
Five GCSE retrieval questions · 17 February 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00046
Answer: 4.6 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 18
Answer: (x + 6)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 33cm, angle = 29°. Find adjacent side
Answer: 28.9cm -
4. Ratio Mixed ratio problems
£392.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £245.00 -
5. Statistics Mean
Calculate the mean of: 46, 42, 29, 27, 15, 38, 10
Answer: 29.6