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[ad-end, uh-dend] /ˈæd ɛnd, əˈdɛnd/
noun, Mathematics
any of a group of numbers or terms added together to form a sum.
(formerly) a number that is added to another in forming a sum.
Compare augend.
Origin of addend
1905-10; shortening of addendum Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for addend
  • Understand subtraction as an unknown-addend problem.
  • It works efficiently when applied to a two-addend problem or a six-addend problem.
  • The effect of span on the use of retrieval increased with the size of the minimum addend.
  • Students should describe the pattern that they see in the addends, eg, each number is one less or one than the previous addend.
British Dictionary definitions for addend


/ˈædɛnd; əˈdɛnd/
any of a set of numbers that is to be added Compare sum1 (sense 1)
Word Origin
C20: short for addendum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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addend in Science
A number that is added to another number.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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