Timtpltu
Timtpltu Timtpltu
  • 23-02-2017
  • Mathematics
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how to rewrite subtraction as addition

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fakejonsmith
fakejonsmith fakejonsmith
  • 23-02-2017
7 - 4 = 3

or

7 + (-4) = 3
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fantasybreeze7
fantasybreeze7 fantasybreeze7
  • 23-02-2017
A worded explanation is keep the first number exactly the same, then change the subtraction to an addition sign. Then change sign if the last number to the opposite sign. If the number was positive, change it to negative, or if negative, change to positive.
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