Keystones — Lintel
Five GCSE retrieval questions · 12 March 2022 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.0059
Answer: 5.9 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² + 2x - 48
Answer: (x + 8)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 34cm, angle = 63°. Find adjacent side
Answer: 15.4cm -
4. Ratio Mixed ratio problems
£423.00 is shared between A and B in the ratio 4:5. How much does A receive?
Answer: £188.00 -
5. Statistics Mean
The mean of 4 numbers is 36. If 3 of them are 26, 29, 38, what is the missing number?
Answer: 51