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Delete - Last Modified By: dna at 7/02/2014 4:18:12 PM
Edit Delete - Last Modified By: dna at 7/02/2014 4:23:21 PM
The link to Khan academy below is to the first in a series about ratio. It would be worth doing all in this series.
Edit Delete - Last Modified By: dna at 13/02/2014 2:40:10 PM
Related tasks from Manga High:
Ratios
Working with ratios
Edit Delete - Last Modified By: dna at 23/04/2014 4:20:30 PM
Have a go at these practice questions from the Oxford Big Ideas 8 text