|
| When you
have more than one operation in a math problem, you must solve it
following the correct ORDER OF OPERATIONS. |
Copy the problem
over exactly as it is written |
 |
|
Go through each level of operations |
|
Parentheses |
|
|
|
| |
Exponents |
|
|
| |
|
Multiply or Divide |
|
| |
|
|
Add or Subtract |
Do the
operations within each level from
left-to-right.
|
 |
Write the
answer directly below the operation sign.
|
Do not
're-use' any numbers
|
Continue until all
the operations are
completed
|
It is always helpful to make up a phrase
(called an acronym) using the first letters of each step in the order of
operations that will help you remember it . A very popular one is:
Please Excuse
My Dear
Aunt Sally.
Sample
Problems
|
3 + 4 * 6 = ? |
|
Multiply or Divide |
|
3 + 4 * 6
= |
|
Add or Subtract |
|
3
+ 24 = |
| Answer: |
|
27 |
|
15 - 3
* 2 + 8 = ? |
|
Multiply or Divide |
|
15 - 3
* 2 + 8 = |
Remember, when doing an operation more than once
in a problem, you need to work from left-to-right |
|
Add or Subtract |
|
15
- 6 + 8 = |
|
Add or Subtract |
|
9 +
8 = |
| Answer: |
|
17 |
|
8 + 3(6 + 3) = ? |
|
Parentheses |
|
8 + 3(6 + 3)= |
Parentheses also mean to multiply, so after doing the
operation inside the parentheses, we need to put an * in. |
|
Multiply or Divide |
|
8 + 3 * 9 = |
|
Add or Subtract |
|
8 + 27 = |
| Answer: |
|
35 |
|
52 + 4 - 2(6
+ 5) = ? |
|
Parentheses |
|
52 + 4 - 2(6
+ 5) = |
|
|
Exponents |
|
52
+ 4 - 2 * 11 = |
|
Multiply or Divide |
|
25 + 4 - 2 * 11
= |
|
Add or Subtract |
|
25 + 4 -
22 = |
|
Add or Subtract |
|
29 - 22 = |
| Answer: |
|
7 |
Let's
Practice!
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