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Hi im lily and im 7 and my sistr wohnt give me the anser to the qwesdion. 10+12 and 20-15 . Plese help me?
 Dec 5, 2013

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 #1
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Hi, Lily!

To answer 10+12 you could write it as 10+10+2, if that would make it easier.
And for the other one, take 15 and count up to 20 that will show you the difference between them, which is the answer.

^_^
 Dec 5, 2013
 #2
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thank you frend
 Dec 5, 2013

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