Keystones — Lintel
Five GCSE retrieval questions · 2 September 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
800000
Answer: 8 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 4x + 4
Answer: (x - 2)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 16cm, angle = 56°. Find opposite
Answer: 23.7cm -
4. Ratio Mixed ratio problems
Simplify: 10:10:6
Answer: 5:5:3 -
5. Statistics Mean
Calculate the mean of: 11, 7, 10, 40, 20, 31
Answer: 19.8