Order of Operations please help?

Question

6 x 7 + 6 - 2 x 9 =

Thanks

and explain

Answer 1

multiplications first:

42 + 6 - 18

Now do the others in order they appear left to right...

48-18 = 30

Answer 2

1. Multiplications and Divisions should be done first.
2. Addition and Subtraction should be done next.
3. Proceed left to right


6 x 7 + 6 - 2 x 9 =

(6 x 7) is Multiplication and must be done first. Also
(2 x 9) is Multiplication as well.

This becomes:

6 x 7 + 6 - 2 x 9 =


42 + 6 - 18 = (because 6 x 7 = 42 and 2 x 9 = 18)


Then proceed left to right.

42 + 6 - 18 = becomes


48 - 18 = (because 42 + 6 = 48)

then finally, 48 - 18 = 30

and so,

6 x 7 + 6 - 2 x 9 = 18

Answer 3

Normally it is as mountain bike man says.

Some computer programming languages use a directional order. For example, in APL, 2x9 would be done first (=18), then 6 - (2x9) = 6 -18 = -12, then 7 + -12 = -5 and, finally 6 x -5 for a final answer of -30. In other cases, the operations are done in the order they are found (start with 6x7, then add 6, then take away 2 and, finally, multiply the last result by 9).

However, these are special cases. Unless you know that the problem asks for such a specific order (and they would have to tell you), use the PEMDAS.

Answer 4

See the others. But as for the answer...

6 x 7 + 6 - 2 x 9
42 + 6 - 2 x 9
42 + 6 - 18
48 - 18
30

Answer 5

6 x 7 + 6 - 2 x 9 =
multiply 6x7 first... 42+6-2x9
multiply 2x9.. 42+6-18
48-18
30 :)

Answer 6

6 x 7 + 6 - 2 x 9 =
13 add first
6 x 13 - 2 x9
11 subtract second
6 x 11 x 9 Multiply third
= 594

Answer 7

1. 6 x7=42
2. 2x9=18
3.42+6-18
= 48-18
=30

Answer 8

6x7=42
2x9=18
42+6-18
48-18
30

Answer 9

parentheses
exponenents
multiplication
division
addition
subtraction Aka PEMDAS

Answer 10

You can easily remember it by saying:

Please
Excuse
My
Dear
Aunt
Sally

Meaning:

Parenthesis: ( )
Exponents: 3 Squared
Mulltiplication: x
Division: /
Addition: +
Subtraction: -