Keystones — Lintel
Five GCSE retrieval questions · 12 July 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
360000
Answer: 3.6 × 105 -
2. Algebra Factorising monic quadratics
Factorise: x² - 12x + 35
Answer: (x - 5)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 29cm, angle = 34°. Find adjacent side
Answer: 24cm -
4. Ratio Mixed ratio problems
£161.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £92.00 -
5. Statistics Mean
The mean of 4 numbers is 30. If 3 of them are 17, 21, 36, what is the missing number?
Answer: 46