Keystones — Lintel
Five GCSE retrieval questions · 9 April 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.06
Answer: 6 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 56
Answer: (x + 8)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 38cm, angle = 31°. Find adjacent side
Answer: 32.6cm -
4. Ratio Mixed ratio problems
Simplify: 24:16:12
Answer: 6:4:3 -
5. Statistics Mean
Calculate the mean of: 10, 10, 34, 37, 10, 6, 15
Answer: 17.4