Keystones — Lintel
Five GCSE retrieval questions · 30 March 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
3700000
Answer: 3.7 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 35
Answer: (x - 5)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 16cm, angle = 51°. Find adjacent side
Answer: 10.cm -
4. Ratio Mixed ratio problems
£100.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £40.00 -
5. Statistics Mean
The mean of 6 numbers is 22. If 5 of them are 44, 20, 19, 33, 34, what is the missing number?
Answer: -18