Yingda Z. answered • 09/16/13

Sometimes, tutor will make your life way more simpler.

MELANIE N.

asked • 08/28/13trying to figure out how to work order of operations

Follow
•
4

Add comment

More

Report

Yingda Z. answered • 09/16/13

Tutor

5
(11)
Sometimes, tutor will make your life way more simpler.

When both writing down and reading the algebraic expressions, the binary operation (including addition+, subtraction-, multiply*, divide/, exponential^) follow a conventional order:

0) Parenthesis, including {}, [], ()

1) Exponent, multiply and divide

2) Addition and subtraction

The ordering is 0)>1)>2). Then there is no ordering within each group, eg multiply and divide are at the same level of priority except that 0) comes in such as a parenthesis.

Thus for your question 3+(8-2)*6.

First compute (8-2)=6;

Then compute (8-2)*6=6*6=36;

Finally compute 3+(8-2)*6=3+36=39.

Let's take a look at another example: 3^2+3/(5-2)

First compute (5-2)=3;

Then do 3/(5-3)=3/3=1;

Next compute 3^2=3*3=9;

Finally add 3^2+3/(5-2)=9+1=10.

Hope it helps!

Nancy N. answered • 08/28/13

Tutor

4.8
(47)
Outstanding Elementary and Spanish Teacher working with grades K-12

Start with the parenthesis first 8-2=6 and then times that by 6 which gives you 36 and then you add three which gives you the answer of thirty nine. A trick to remember this is Peter Michaels divides Susie's Apple:

Parenthesis, Multiplication and Division, Subtraction and Addition. Please note: addition and subtraction are always paired together and multiplication and division are always paired together. I hope this helps you.

Nancy N.

Daniel E. answered • 08/28/13

Tutor

5
(8)
Highly Experienced MBA Who Can Tutor Many Subjects

Remember PEMDAS, Parenthesis, Exponents, Multiply, Divide, Add, Subtract

So 3 + (8-2)*6

Parenthesis first = 3+6*6

Multiply second = 3+36

Add last = 39

Dan

Ask a question for free

Get a free answer to a quick problem.

Most questions answered within 4 hours.

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.