Keystones — Lintel
Five GCSE retrieval questions · 8 November 2024 · mathsvault.uk/keystones
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1. Number Converting to standard form
200000
Answer: 2 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 18cm, angle = 41°. Find adjacent side
Answer: 13.6cm -
4. Ratio Mixed ratio problems
£324.00 is shared between A and B in the ratio 5:4. How much does A receive?
Answer: £180.00 -
5. Statistics Mean
The mean of 4 numbers is 24. If 3 of them are 38, 26, 47, what is the missing number?
Answer: -15