1. 43
Order of Operations ÷
( ) + - X
Meet Aunt Sally

2. Moby would tell you that it’s important to put the filling in before baking the crust

3. Math is like baking a pie. You can’t just do the steps in any order.

4. The Order of Operations tells us how to do a math problem with more than one operation, in the correct order.
Order of Operations

5. Please Excuse My Dear Aunt Sally
Parentheses ( ) E
Exponents 43 M D
Multiply x
Divide ÷ A S
Add +
Subtract -

6. Please Excuse My Dear Aunt Sally
Parentheses ( )
Always do parentheses 1st.

7. Please Excuse My Dear Aunt Sally
Exponents 43
Always do Exponents 2nd.

8. Please Excuse My Dear Aunt Sally
Multiply x
Divide ÷
Do multiplication and division 3rd, from left to right.

9. Please Excuse My Dear Aunt Sally
Add +
Subtract -
Do addition and subtraction 4th, from left to right.

10. Let’s Try Some Problems!
Get your math notebooks ready!

11. PEMDAS
(9+1) 6

12. PEMDAS
3 x (9+1)
3 x(10)
3 x 10 30

13. PEMDAS
4+5 x (6 - 2)
4+5 x 4
4+20 24

14. PEMDAS
8 – 2 x
8 – 6 +16
2 +16 18

15. PEMDAS
64 ÷ (9 x )
64÷(27 –19)
64 ÷ 8 8

16. Put the following words in alphabetical order
Parenthesis
Braces
Brackets
Braces
Brackets
Parenthesis

17. Learning the order of these is as easy as…3 2 1
Braces { }
Brackets [ ]
Parenthesis ( )

18. Parenthesis, brackets, then braces
( ) [ ] { }
Parenthesis, brackets, then braces

19. Glue the pages in your math notebook.
Complete the problems
in your team.

20. Where would you put your Parentheses ( ) to make this problem true?
PEMDAS
Where would you put your Parentheses ( ) to make this problem true?
6 x = 18
6 x (8 - 5)= 18
6 x 3 = 18

21. Where would you put your Parentheses ( ) to make this problem true?
PEMDAS
Where would you put your Parentheses ( ) to make this problem true?
42 ÷ 2 x = 2
42 ÷ (2 x 3) - 5 = 2
42 ÷ (6) - 5 = 2
42 ÷ = 2
7 - 5 = 2

22. More Practice
54 – 200 ÷4
3 x 8 – 6 ÷ 2
5 x 15 ÷ 3
10 –