Keystones — Lintel
Five GCSE retrieval questions · 14 April 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0059
Answer: 5.9 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 42
Answer: (x + 7)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 15cm, angle = 34°. Find opposite
Answer: 10.cm -
4. Ratio Mixed ratio problems
Simplify: 6:4:8
Answer: 3:2:4 -
5. Statistics Mean
Calculate the mean of: 37, 6, 15, 22, 5, 34, 11, 49
Answer: 22.4