Keystones — Lintel
Five GCSE retrieval questions · 29 January 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
95000000
Answer: 9.5 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 14
Answer: (x + 7)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 17cm, angle = 42°. Find adjacent side
Answer: 12.6cm -
4. Ratio Mixed ratio problems
£196.00 is shared between A and B in the ratio 3:4. How much does A receive?
Answer: £84.00 -
5. Statistics Mean
Calculate the mean of: 11, 44, 11, 28, 43, 49, 6, 29
Answer: 27.6