Keystones — Lintel
Five GCSE retrieval questions · 14 October 2018 · mathsvault.uk/keystones
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1. Number Converting to standard form
19000000
Answer: 1.9 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 12
Answer: (x - 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 18cm, angle = 55°. Find opposite
Answer: 25.7cm -
4. Ratio Mixed ratio problems
£294.00 is shared between A and B in the ratio 2:5. How much does A receive?
Answer: £84.00 -
5. Statistics Mean
Calculate the mean of: 24, 46, 23, 27, 16, 49, 38
Answer: 31.9