Keystones — Lintel
Five GCSE retrieval questions · 30 March 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0049
Answer: 4.9 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 10x + 25
Answer: (x - 5)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 35°. Find adjacent side
Answer: 27.9cm -
4. Ratio Mixed ratio problems
£378.00 is shared between A and B in the ratio 4:5. How much does A receive?
Answer: £168.00 -
5. Statistics Mean
Calculate the mean of: 7, 15, 7, 17, 22, 41, 16, 41
Answer: 20.8