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Mathematics Handbook/Subtraction
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From IdeaWazaWiki
Revision as of 18:01, 1 November 2010 by
wikademia>Adrignola
(moved
Mathematic Handbook/Subtraction
to
Mathematics Handbook/Subtraction
: Use proper grammar)
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a - 0 = a
a - (-a) = 2a
a - (a) = 0
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