18/3[6-2(12- 10)]
9
6
Vinaire
From: testimprove <bonnerentree2003@yahoo.fr>
To: Math4u@yahoogroups.com
Sent: Saturday, December 15, 2007 2:31:59 AM
Subject: [Math4u] Re: Sequence of Operations
Hello,
Multiplication and division, when grouped together, are referred to as terms. Numbers and operations within parentheses are also called terms. The terms are separated from each other by plus or minus.
Terms are always reduced first before reducing rest of the mathematical expression. "
Could you tell me how many terms are in this expression :
18/3[6-2(12- 10)]+9-6
Best wishes
Badriya
--- In Math4u@yahoogroups. com, Vinaire <vinaire@...> wrote:
>
> I have revised the SUMMARY of my paper on MIXED OPERATIONS as follows:
>
>
>
>
> When all the operations of
> addition, subtraction, multiplication and division are present together as a
> mathematical expression we have mixed operations.
>
>
>
>
>
> The operations of addition
> and subtraction are opposite, or inverse, of each other. Therefore, these two
> operations are of the same order.
> However, subtraction is more complex because, it leads to the idea of
> negative numbers. Subtraction, thus, takes precedence over addition in mixed
> operations.
>
>
>
>
>
> Multiplication is
> "compressed addition." One multiplication consists of several
> additions. Therefore, multiplication is a higher order operation than addition.
> Since addition and subtraction are of the same order, multiplication takes
> precedence over both subtraction and addition.
>
>
>
>
>
> Division is opposite, or
> inverse, of multiplication. Therefore, multiplication and division are
> operations of the same order of. However, division is more complex because it
> leads to the idea of fractions. Division, thus, takes precedence over
> multiplication in mixed operations.
>
>
>
>
>
> Multiplication and division,
> when grouped together, are referred to as terms. Numbers and operations within
> parentheses are also called terms. The terms are separated from each other by
> plus or minus.
>
>
>
>
>
> Terms are always reduced
> first before reducing rest of the mathematical expression. Thus, the concept of
> terms automatically enforces the precedence of multiplication and division over
> addition and subtraction.
>
>
>
>
>
> Understanding the logic
> involved in reducing mixed operations is very important. Only when this logic
> is understood, do the "formulas" about precedence of operations make sense.
>
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. __._,_.___
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe
__,_._,___
No comments:
Post a Comment