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Well there's a few ways you could approach this. If you're doing mental maths I'd start with adding the big numbers together i.e. 800 and 200 to get 1000

17 May 2011

thank you

17 May 2011

what is 1

17 May 2011

Then we have to think about adding the 76 and 37 together.. the way I'd think about that is to add the 70 and the 30 together to get 100 so now we have a total of 1100

17 May 2011

now all we have to do is worry about the 6 and the 7. 6+7= 13 so we add that on to get 1113

17 May 2011

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