SOLUTION: When you add, subtract, multiply or divide are there any special rules to consider when dealing with integers?

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Question 723286: When you add, subtract, multiply or divide are there any special rules to consider when dealing with integers?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Yes.
You can multiply by +0+,
but you can't divide by +0+
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When multiplying, ( - ) x ( - ) = ( + )
( - ) x ( + ) = ( - )
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( - ) / ( - ) = ( + )
( + ) / (- ) = ( -)
( - ) / ( + ) = ( - )
All the rest are pretty simple