Keystones — Lintel
Five GCSE retrieval questions · 7 November 2024 · mathsvault.uk/keystones
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1. Number Converting to standard form
700000
Answer: 7 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 12
Answer: (x + 4)(x - 3) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 26°. Find adjacent side
Answer: 30.6cm -
4. Ratio Mixed ratio problems
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics Mean
The mean of 6 numbers is 36. If 5 of them are 15, 29, 34, 48, 27, what is the missing number?
Answer: 63