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Sunday, December 20, 2009

Subtracting A Rational Number

                                                                    -4-(-9)

                                Step 1: -4-(-9)                            The opposite of (-9) is 9.
                                Step 2: -4-(-9) = -4+ 9                Add
                                Step 3: = 5                                  

Posted by Sara at 12/20/2009 08:48:00 PM  

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