Keystones — Lintel
Five GCSE retrieval questions · 23 October 2010 · mathsvault.uk/keystones
-
1. Number Converting to standard form
Write 0.032 in standard form
Answer: 3.2 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 15x + 44
Answer: (x - 4)(x - 11) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 30cm, angle = 56°. Find adjacent side. Give your answer to 2 decimal places
Answer: 16.78cm -
4. Ratio Mixed ratio problems
£296.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £185.00 -
5. Statistics Mean
Calculate the mean of: 41, 49, 38, 28, 26, 18, 8. Give your answer to 2 decimal places
Answer: 29.71