Order of Operations

Order of Order of OperationsOperations( ) +

X-

43

The Order of Operations tells us how to do a math problem with more than

one operation, in the correct order.

Please Excuse My

Dear Aunt Sally

This will help to you to remember the order of operations.

Add +

Subtract -

Multiply x

Divide

Please Excuse My Dear Aunt Sally

PEMDAS

Parentheses ( ) Exponents 43

Please Excuse My Dear Aunt Sally

Parentheses ( )

Always do parentheses

1st.

Please Excuse My Dear Aunt Sally

Exponents 43

Always do Exponents

2nd.

Multiply x

Divide

Please Excuse My Dear Aunt Sally

Do multiplication

and division 3rd, from left to

right.

Add +

Subtract -

Please Excuse My Dear Aunt Sally

Do addition and subtraction 4th,

from left to right.

Let’s Try Let’s Try Some Some Problems!Problems!

PEMDAS3+23- (9+1)3+23-

103+8-1011-101

PEMDAS3 (9+1) + 623(10)+62

3(10)+3630+3

6 66

PEMDAS4+5 x (6-2)4+5 x 4

4+2024

PEMDAS4+ 10 x 23 -164+10 x 8 -164+ 80 -

1684-1668

PEMDAS

21 + 102 1021+10010

21 + 10 31

PEMDAS10+72-2 x 5 10+49–2 x 5 10+49-

10 59 - 104

9

PEMDAS

64 (9 x 3-19)64(27 –19)

64 8

8

Have fun Have fun doing the doing the Order of Order of Operations! Operations!