Keystones — Lintel
Five GCSE retrieval questions · 15 March 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.006
Answer: 6 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + 3x - 4
Answer: (x + 4)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 38cm, angle = 56°. Find adjacent side
Answer: 21.2cm -
4. Ratio Mixed ratio problems
Divide 100 in the ratio 1:1:3
Answer: 20, 20 and 60 -
5. Statistics Mean
Calculate the mean of: 5, 47, 26, 15, 40, 22, 6, 13
Answer: 21.8