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Published: 30/09/2019
2 pages

Changing ratio

This word resource is aimed at year 7 to introduce the idea of how ratio changes with the addition/removal of objects. It could be used with other year groups depending on ability.    

See other resources: Number | Ratio and proportion

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Camilla Clarkson, Teachit maths editor
Camilla Clarkson, Teachit maths editor
Hi Joanne,
Thank you so much for spotting the error - that should all be fixed now.
Posted on 6th November 2019
Joanne Taylor
Joanne Taylor
I think this is a great resource but I should note there is an error in the answers to step 5 & 6.
After step 4 you have 3 red and 15 yellow, step 5 states, add 2 red and 2 yellow, this gives a ratio of 5:17 not 12:17 as given in the answers.
Posted on 12th October 2019

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