1. Order of Operations ÷ + - X

2. What is order of operations?
In math, there is a certain way to do certain math problems. When you’re doing a math problem with more than one operation (x, ÷, +, -) there’s a certain order you must follow.
For example:
Which operation do you do 1st?
3 + 5 x 3 ÷ 3 = ? + x ÷
Which operation do you do 2nd?
Which operation do you do last?
Three different operations.

3. Please Excuse My Dear Aunt Sally E M D A S
Parentheses 1st
Exponents 2nd
Multiplication or Division Next
Addition or Subtraction Last

4. Please Excuse My Dear Aunt Sally
7 + 6 13

5. Please Excuse My Dear Aunt Sally
8 + 9
- 5
17 - 5 12

6. Please Excuse My Dear Aunt Sally
÷ 3 = ?
15 ÷ 3
3 + 5
3 + 5 = ? 8

7. Please Excuse My Dear Aunt Sally
3 + 5
8 x 3
8 x 3 ÷ 6 = ?
24 ÷ 6 = ?
24 ÷ 6 4

8. Please Excuse My Dear Aunt Sally
(3 + 10) ÷ 3 = ?
3 + 10
13 ÷ 3
13 ÷ 3 = ? 4⅓

9. Please Excuse My Dear Aunt Sally
3 + 5
3 ÷ 3
8 x 1 = ?
8 x 1 8

10. Please Excuse My Dear Aunt Sally2 2
2 + 8 x 3 = ___ 8
2 +
64 x 3
194

11. Please Excuse My Dear Aunt Sally
5 ÷ 5
1 x 3
1 x 3 ÷ 3 = ?
3 ÷ 3 = ?
3 ÷ 3 1

12. Please Excuse My Dear Aunt Sally
5 X [( ÷ 3 ) x 3 ] = ___
3 ÷ 3
5 X [( ) x 3 ] = ?
5 x [ 6 x 3 ] = ?
6 x 3
5 x 18 = ?
5 x 18 90