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hannahemily

  • 3 years ago

what are the rules when you add and subtract negitive and positive numbers?

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  1. amistre64
    • 3 years ago
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    ..... always add?

  2. hannahemily
    • 3 years ago
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    ?

  3. amistre64
    • 3 years ago
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    subtraction is just "adding a negative"

  4. amistre64
    • 3 years ago
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    like signs are always positive different signs go negative

  5. hannahemily
    • 3 years ago
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    ok but what if u subtract a negitive?

  6. amistre64
    • 3 years ago
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    3--5 .... like signs are positive 3+5

  7. hannahemily
    • 3 years ago
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    ok umm -4 --7 would equal...

  8. amistre64
    • 3 years ago
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    -4--7 -4+7 7-4 = ?

  9. hannahemily
    • 3 years ago
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    ??????????

  10. amistre64
    • 3 years ago
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    yeah, that doesnt help me understand your confusion any.

  11. amistre64
    • 3 years ago
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    do we have to start back with "what is a number" and go from there?

  12. pottersheep
    • 3 years ago
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    ++ becomes + -- becomes + +- becomes -

  13. pottersheep
    • 3 years ago
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    i.e. 1 - - 1 = 1 + 1 = 2 whereas 1 + - 1 = 1 - 1 = 0 1 ++ 1 = 1+1 =2

  14. amistre64
    • 3 years ago
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    |dw:1317769616241:dw|

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