Keystones — Lintel
Five GCSE retrieval questions · 10 November 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.08
Answer: 8 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 56
Answer: (x + 8)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 23cm, angle = 33°. Find adjacent side
Answer: 19.3cm -
4. Ratio Mixed ratio problems
£217.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £62.00 -
5. Statistics Mean
The mean of 5 numbers is 27. If 4 of them are 15, 28, 27, 46, what is the missing number?
Answer: 19