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anonymous

  • 5 years ago

How do you multiply and divide integers? I asked the question before but lost the paper. Help?

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  1. nowhereman
    • 5 years ago
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    Multiplication is done like: \[0\cdot n = 0,\quad (m+1)\cdot n = m\cdot n + n\]\[(-m)\cdot n = m\cdot (-n) = -(m\cdot n)\] and for division you have to find m: \[m = \frac k n ⇔ m\cdot n = k\]

  2. anonymous
    • 5 years ago
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    you mulitlpy th numbers then you lok at the sign same sign = positve different sign =negitve

  3. anonymous
    • 5 years ago
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    So a negativs and a negative equals a positive and a postive and a negative equals a negative???

  4. nowhereman
    • 5 years ago
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    yes

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