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What's the answer? Where do the parenthesis go? Any rules?

2007-02-23 10:04:32 · 15 answers · asked by klgtym 2 in Science & Mathematics Mathematics

15 answers

Rules are "My Dear Aunt Sally" (Multiplication, Dvision, Addition, Subtraction)

4 + (5x2) - 6 + 3

4 + 10 - 6 + 3

14 - 6 + 3

8 + 3

11

2007-02-23 10:09:58 · answer #1 · answered by engineer 2 · 0 0

The constructor of the expression is who must determine the order of the operation and the localization of the parentheses. Being thus, they follow the indication below:
1st: () [ ] {}
2nd: multiplication and/or division, addition and or subtraction. For all, to follow the sequential order is basic in the proposal mathematical.
In that way, you solve so:
4 + (2 x 5) - 6 + 3
4 + 10 - 6 + 3
14 - 6 + 3
8 + 3 = 11
Each new position of the parentheses determines a new resulted for the expression given.
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2007-02-23 10:23:11 · answer #2 · answered by aeiou 7 · 0 0

You must use a little tool called BEDMAS, it stands for Brackets, Exponents, Division, Multiplication, Addition, Subtraction. It is the order in which you approach a mathematical questions. So using this...

4 + 2 x 5 - 6 +3

= 4 + (2x5) - 6 + 3
= 4 + 10 - 6 +3
= 11

So your answer is 11

2007-02-23 10:14:51 · answer #3 · answered by Anonymous · 0 0

4+2*5-6+3

4+10-6+3

=11

PEMDAS > Parenthesis, Exponent, Multiply, Divide, Add, Subtract > Do your operations in that order.

2007-02-23 10:10:02 · answer #4 · answered by George V 1 · 0 0

Remember this sentence:
Please Excuse My Dear Aunt Sally
Parentheces, Exponents, Multiplicaton, Division, Addition, Subtraction
4 + 2 x 5 - 6 + 3
4 + 10 - 6 + 3
14 - 6 + 3
8 + 3
11

2007-02-23 10:15:40 · answer #5 · answered by Sexy C 3 · 0 0

11

2007-02-23 10:07:41 · answer #6 · answered by kash 3 · 0 0

just remember PEMDAS. parenthaseas, exponents, multiplication/division, and then finally addition/subtraction.
sooo.... 4+2 x 5 - 6 + 3=
2 x 5=10
4 + 10 - 6 + 3= 11.

2007-02-23 10:09:35 · answer #7 · answered by *emily* 2 · 0 0

Order of Operations
Parenthesis
Exponents
Multiplication/Division
Addition/Subtraction

So for this problem
4 + 2 x 5 - 6 + 3

step 1: multiplication
4+ 10 - 6 +3

step 2: addition and subtraction

=11

2007-02-23 10:09:33 · answer #8 · answered by Michael 2 · 0 0

Here is a handy hint my algebra teacher taught me 15 yrs ago when i was in class......
Please Excuse My Dear Aunt Sally
it is the order for solving equations
Parenthesis, exponent, multiply , divide, add, subtract

as for where the parenthesis go I am not sure

2007-02-23 10:12:07 · answer #9 · answered by bravokardia 4 · 0 0

try this BODMAS-
B- Brackets
O- Operations
D-Division
M- Multiplication
A- Addition
S-Subtraction
4 + 2 x 5 - 6 +3

= 4 + (2x5) - 6 + 3
= 14 - 9
= 5
My answer is 5

2007-02-23 10:15:32 · answer #10 · answered by jahstan 3 · 0 0

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