Keystones — Lintel
Five GCSE retrieval questions · 13 November 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0092
Answer: 9.2 × 10^-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 14cm, angle = 39°. Find opposite
Answer: 11.3cm -
4. Ratio Mixed ratio problems
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics Mean
Calculate the mean of: 19, 23, 13, 14, 5, 13
Answer: 14.5