Pronunciation: /ˈnɛg ə tɪv/ ?

The negative of a number is the number with the sign changed. The negative of 5 is -5. The negative of -3 is --3 = 3. The negative of x is -x. The negative of -x is --x = x. A double negative is the negative of a negative. The double negative of x is --x = x.


  1. Fine, Henry B., Ph. D.. Number-System of Algebra Treated Theoretically and Historically, 2nd edition, pp 6-12. D. C. Heath & Co., Boston, U.S.A., 1907. (Accessed: 2009-12-19).
  2. Keigwin, H. W.. Principles of Elementary Algebra, pg 3. Ginn & Company, 1886. (Accessed: 2010-01-12).
  3. Bettinger, Alvin K. and Englund, John A.. Algebra and Trigonometry, pg 4. International Textbook Company, January 1963. (Accessed: 2010-01-12).

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Negative. 2010-08-05. All Math Words Encyclopedia. Life is a Story Problem LLC.

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2010-08-05: Initial version (McAdams, David.)
2009-12-19: Added "References" (McAdams, David.)

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