Keystones — Lintel
Five GCSE retrieval questions · 10 September 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0007
Answer: 7 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² - 6x + 8
Answer: (x - 2)(x - 4) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 13cm, angle = 38°. Find opposite
Answer: 10.2cm -
4. Ratio Mixed ratio problems
£301.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £172.00 -
5. Statistics Mean
Calculate the mean of: 28, 49, 44, 44, 17, 40
Answer: 37