Keystones — Lintel
Five GCSE retrieval questions · 6 June 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
710000
Answer: 7.1 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 36
Answer: (x - 6)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 22cm, angle = 37°. Find opposite
Answer: 16.6cm -
4. Ratio Mixed ratio problems
Divide 207 in the ratio 4:3:2
Answer: 92, 69 and 46 -
5. Statistics Mean
Calculate the mean of: 5, 5, 14, 23, 10, 21, 20, 11
Answer: 13.6