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Mathematics Handbook/Addition (short)

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Revision as of 12:55, 4 November 2010 by wikademia>Sluutu
  1. a + 0 = a → Any number added to zero gives the number itself.
  2. a + (-a) = 0 → Any number added to its opposite (additive inverse) gives zero
  3. a + (a) = 2a → Any number added to itself gives double the number

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