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What do you do when adding and subtracting integers?
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Arielle025

by Arielle025 at October 25, 2010

An example would be -9 + 15=

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add and substract the integers...
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tiseana_renee tiseana_renee October 25, 2010

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I would reverse the two in my head mentally. Subtraction, after all, is just a way to measure distance between two numbers. If I saw 9 - 15 I would look at it as 9 + (-15) mentally anyway. I guess after doing it for so long I don't think about it much. *shrugs*
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fabianscorpio fabianscorpio October 25, 2010

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You reverse them so it is 15-9
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yankeekid yankeekid October 25, 2010

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youjst do this if the ? was this 58+-45 = 58=45
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cheese360001 cheese360001 October 25, 2010

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Add a positive integer by moving to the right on the number lineAdd a negative integer by moving to the left on the number lineSubtract an integer by adding its opposite
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ChromeRedCat ChromeRedCat October 25, 2010

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ouo
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Stoichiometry Stoichiometry October 26, 2010

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