Keystones — Lintel
Five GCSE retrieval questions · 15 January 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0094
Answer: 9.4 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 17cm, angle = 47°. Find opposite
Answer: 18.2cm -
4. Ratio Mixed ratio problems
Simplify: 12:24:8
Answer: 3:6:2 -
5. Statistics Mean
Calculate the mean of: 47, 25, 18, 35, 48, 33
Answer: 34.3