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September 17, 2014

September 17, 2014

Posted by **B.B.** on Monday, June 29, 2009 at 11:55pm.

- Math -
**Marth**, Tuesday, June 30, 2009 at 9:26amSimply substitute numbers of opposing signs for n+m.

For example, n=-1, and m = 2

|n+m| = |-1+2| = |1| = 1

|n| + |m| = |-1| + |2| = 1+2=3

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