Keystones — Lintel
Five GCSE retrieval questions · 1 December 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
6800000
Answer: 6.8 × 106 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 2
Answer: (x + 2)(x - 1) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 39cm, angle = 50°. Find adjacent side
Answer: 25.cm -
4. Ratio Mixed ratio problems
£252.00 is shared between A and B in the ratio 4:3. How much does A receive?
Answer: £144.00 -
5. Statistics Mean
The mean of 6 numbers is 40. If 5 of them are 16, 17, 26, 32, 19, what is the missing number?
Answer: 130