Homework Help: 3rd grade math

Posted by Skyla on Tuesday, September 8, 2009 at 7:14pm.

3,456 in expanded form? 3 thousand 4 hundred and 56? is this right?

3rd grade math - DrBob222, Tuesday, September 8, 2009 at 7:23pm
I would write this as
3000 + 400 + 50 + 6
Here is a site that explains it rather well.
addtion patterns - lena boutros, Thursday, September 10, 2009 at 5:15pm
2+5=7
3rd grade math - ashley, Tuesday, September 15, 2009 at 8:30pm
5+4=9 4+5=9 is commutative is this right?

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