Keystones — Lintel
Five GCSE retrieval questions · 30 August 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
8800000
Answer: 8.8 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + 4x - 5
Answer: (x + 5)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 24cm, angle = 51°. Find opposite
Answer: 29.6cm -
4. Ratio Mixed ratio problems
Divide 260 in the ratio 3:4:3
Answer: 78, 104 and 78 -
5. Statistics Mean
Calculate the mean of: 11, 28, 15, 8, 18, 41, 15
Answer: 19.4