Homework Help: math

Posted by Pope on Saturday, June 23, 2012 at 10:05am.

Chris has 7 whistles. He needs 10 whistles for party. Which number sentence can help you find how many more whistles Chris needs?

math - PsyDAG, Saturday, June 23, 2012 at 12:56pm
What are your choices?

10 - 7 = ?

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