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My Aunt Sally is a 

wonderful lady. She is 

extremely smart and helps 

me with my homework. 

One day, she was helping 

me with my math 

homework on Order of 

Operations, when all of a 

sudden she stopped.

Aunt Sally was stuck on this concept. She did 

not know what order the operations went in. I 

went to class the next day and learned what to 

do. When I came home from school with my 

friend Becky, I saw my Aunt Sally sitting at the 

kitchen table yelling at the paper in front of 

her. I glanced at the paper and noticed it was a 

math problem about the order of operations. 

Since I knew how to do it, I went ahead and 

taught her. I turned to Becky and said, "Please 

excuse my dear aunt sally, for she is having 

trouble figuring out which order the operations 

go in."

I sat next to Aunt Sally and explained what the order of operations was and a way to 

remember the order. 

First, I told her what the Order of Operations was:

The rules that say which calculation comes first in an expression.

Then, I told her the order:

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

For short, this represents P.E.M.D.A.S. Each letter represents the words above.

Aunt Sally was starting to understand the order of operations. However, she was having a 

hard time remembering the order.

So, I came up with a fun way to remember the order. 

Since Aunt Sally was yelling at her paper, I thought of the phrase, "Please excuse my dear 

aunt sally" in order to memorize the order of P.E.M.D.A.S.

Now that Aunt Sally understood the order of operations, we went ahead and did the math 

problem together.

Here was the math problem:

9÷3+2(9+10)-8+4x3

Here is how we solved it:

Step One: Add 9+10 in the parenthesis which = 19

9÷3+2(19)-8+4x3

Step Two: Since there are no exponents, we multiplied 2x19 and 4x3. So now the 

equation is:

9÷3+38-8+12

Step Three: We divided 9÷3 since that is next in line on the order.

Step Four: We added 3+38 and got 41. 

Here is what the equation looks like now:

41-8+12

Step five: We calculated the rest of the problem from left to right.

Our answer:

=45

The next page is Aunt Sally's work for the expression.

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