Keystones — Lintel
Five GCSE retrieval questions · 24 August 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
69000
Answer: 6.9 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 35
Answer: (x - 7)(x - 5) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 11cm, angle = 40°. Find opposite
Answer: 9.2cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 48, 6, 11, 10, 50, 9, 23, 19
Answer: 22