Order of Operations
What is the Order of Operations?
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
What is the symbol for addition?
+
2 x 2 - 2
= 4 - 2
= 2
3 / 3 + 3
= 1 + 3
= 4
The Rock n Roll Hall of Fame is in what state?
Ohio
Which operation should you do first: addition or multiplication?
Multiplication
What is the symbol for subtraction?
-
16-2+5
19
8 + 2 x 7
22
How many Grammys does Taylor Swift have?
14
Which operation should you do first: addition or subtraction?
Trick question: You go left to right!
If addition comes first, you do addition first.
If subtraction comes first, you do subtraction first.
What are three ways to represent multiplication?
With a x, a dot, and a parentheses
15 - 2(5 - 2)
= 15 - 6
= 9
3 + 2.5 x 5 - 4.8
= 3 + 12.5 - 4.8
= 15.5 - 4.8
= 10.7
What is the all time most streamed music video on YouTube?
Which operation should you do first: division or multiplication?
Trick question: Go left to right!
If division comes first, do division first.
If multiplication comes first, do multiplication first.
What are the three ways to represent division?
Division symbol, fraction, decimal
5(2 + 4) + 15 / (9-6)
5(6) + 15 / (3)
= 30 + 5
= 35
3[8 - 3 x 2 + 4(5-2)]
= 3[8 - 3 x 2 + 4(3)]
= 3[8 - 6 + 12]
= 3[2 + 12]
= 3[14]
= 42
What is the all time most streamed song on Spotify?
Blinding Lights - The Weekend
What operation should you do when you see a double parentheses?
For example: 2+3[(1x5)-(2+1)]
Do the small parentheses first!
2+3[(1x5)-(2+1)]
= 2+3[5-3]
= 2+3[2]
= 2+6
= 8
What are three things Ms. Liu needs you to do with every math problem in her class?
2. Go line by line going down
3. Box or circle your answer
5 + 3.5 x 4 - 8 + 2 x (-7.9)
= 5 + 14 - 8 - 15.8
= 19 - 8 - 15.8
= 11 - 15.8
= - 4.8
(18 - 22)/6 - 1/6
= -4/6 - 1/6
= -5/6
What is the best selling album of all time?
Michael Jackson - Thriller