Keystones — Lintel
Five GCSE retrieval questions · 3 August 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
4900000
Answer: 4.9 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 8x + 12
Answer: (x - 2)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 14cm, angle = 33°. Find opposite
Answer: 9.cm -
4. Ratio Mixed ratio problems
Divide 135 in the ratio 1:4:4
Answer: 15, 60 and 60 -
5. Statistics Mean
Calculate the mean of: 10, 47, 20, 10, 20, 35, 45, 17
Answer: 25.5