Answers

2015-07-13T20:19:11+08:00
If the two integers have different signs you just multiply then if they have the same sign you just write the possitive sign if they have the different sign you just write negative sign
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2015-07-13T21:37:58+08:00

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Unlike signs (numbers that have different signs) = negative
ex: -1 x 5 = -5

like signs (numbers that have the same signs) = positive
ex: 5 x 8 = 40

TIP:
Also the same in division.
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