Keystones — Lintel
Five GCSE retrieval questions · 9 January 2023 · mathsvault.uk/keystones
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1. Number Converting to standard form
80000000
Answer: 8 × 107 -
2. Algebra Factorising monic quadratics
Factorise: x² - 7x + 10
Answer: (x - 5)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 36cm, angle = 35°. Find adjacent side
Answer: 29.5cm -
4. Ratio Mixed ratio problems
£225.00 is shared between A and B in the ratio 2:3. How much does A receive?
Answer: £90.00 -
5. Statistics Mean
Calculate the mean of: 28, 31, 28, 41, 10, 31, 26
Answer: 27.9