Keystones — Lintel
Five GCSE retrieval questions · 27 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0085
Answer: 8.5 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 30
Answer: (x - 5)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 26cm, angle = 57°. Find opposite
Answer: 40cm -
4. Ratio Mixed ratio problems
In ratio 2:1:2, what fraction is the second part?
Answer: 1⁄5 -
5. Statistics Mean
Calculate the mean of: 6, 46, 26, 7, 33, 29, 6
Answer: 21.9