Meaning of subtraction

sub•trac•tion

Pronunciation: (sub-trak'shun), [key]
— n.
  1. an act or instance of subtracting.
  2. the operation or process of finding the difference between two numbers or quantities, denoted by a minus sign (−).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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