Keystones — Lintel
Five GCSE retrieval questions · 8 March 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
44000000
Answer: 4.4 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 35cm, angle = 61°. Find adjacent side
Answer: 17cm -
4. Ratio Mixed ratio problems
£240.00 is shared between A and B in the ratio 3:2. How much does A receive?
Answer: £144.00 -
5. Statistics Mean
The mean of 6 numbers is 25. If 5 of them are 46, 33, 26, 49, 36, what is the missing number?
Answer: -40