Keystones — Lintel
Five GCSE retrieval questions · 10 July 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
110000
Answer: 1.1 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 20cm, angle = 37°. Find adjacent side
Answer: 16cm -
4. Ratio Mixed ratio problems
£207.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £115.00 -
5. Statistics Mean
Calculate the mean of: 44, 5, 7, 25, 24, 21
Answer: 21