Keystones — Lintel
Five GCSE retrieval questions · 24 May 2019 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.09
Answer: 9 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 21cm, angle = 51°. Find opposite
Answer: 25.9cm -
4. Ratio Mixed ratio problems
Divide 96 in the ratio 1:1:2
Answer: 24, 24 and 48 -
5. Statistics Mean
Calculate the mean of: 10, 19, 40, 9, 32, 10, 13, 26
Answer: 19.9