Keystones — Lintel
Five GCSE retrieval questions · 10 December 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
700000
Answer: 7 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + 5x - 6
Answer: (x + 6)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 30cm, angle = 30°. Find opposite
Answer: 17.3cm -
4. Ratio Mixed ratio problems
Simplify: 18:15:6
Answer: 6:5:2 -
5. Statistics Mean
Calculate the mean of: 35, 42, 22, 14, 13, 43, 46, 23
Answer: 29.8