Difference between revisions of "Multiplication"

Revision as of 00:16, August 31, 2008

This article or section is too vague; please provide better definitions for key terms and link to basic concepts.
Multiplication may be defined as repeated addition. For example, 3 X 2 is the sum of 2 + 2 + 2.

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 {{vague}}
-'''Multiplication''' is a mathematical operation. Multiplication of positive integers is the same as repeated addition.  You multiply two numbers together; that is, multiplication is always performed on two ''operands,'' which in this case are known as the ''multiplicand'' and the ''multiplier.'' The result is a third number, the ''product.''
+'''Multiplication''' may be defined as repeated addition. For example, 3 X 2 is the sum of 2 + 2 + 2.
-*3 times 2 = 2 added three times  = 2 + 2 + 2 =  6.
-This also works the other way:
-*3 times 2 = 3 added two times = 3 + 3 = 6.
-x 3 = 3 x 2, regardless of the order of the operands, per the [[commutative|commutative property]].
-Multiplication is sometimes confusing because the symbol for multiplication is very similar to the letter x; but the letter x can also stand for a variable in algebra, as in "solve for x."
-In printed material, slightly different symbols are used for the letter x and the multiplication symbol &times;. Sometimes, in mathematics, a centered dot is used to stand for multiplication:
-:3 &middot; 2
-:a &middot; b
-:6.022 &middot;10<sup>23</sup>
-In algebra, quantities may simply be juxtaposed (written next to each other) without any symbols, to indicate multiplication. In this expression, 2ab means 2 times ''a'' times ''b''.
-:a<sup>2</sup> + 2ab + b<sup>2</sup>
 ==See also==
 *[[Multiplication Property of Equality]]

Difference between revisions of "Multiplication"

Revision as of 00:16, August 31, 2008

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