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Mathematics 15 Online
OpenStudy (anonymous):

13 - (-17) = ?

OpenStudy (johnweldon1993):

Hint: Negative times a negative = positive \[\large 13 - (-17)\] distribute the '-' sign \[\large 13 + 17 = ?\]

OpenStudy (anonymous):

30? or -30?

OpenStudy (anonymous):

@johnweldon1993 ^

OpenStudy (cggurumanjunath):

|dw:1405363609036:dw|

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