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Lesson 4: Order of operations introduction

# Order of operations introduction

The order of operations is a crucial math concept that ensures consistent results when solving problems with multiple operations. By following PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction), students can accurately evaluate expressions and avoid common mistakes. Mastering this skill is essential for success in mathematics. Created by Sal Khan.

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• When Sal said "armed by the order of operations" my brother yelled "oh no, its another D-Day, and I died laughing at that
• D-DAY is war, like the world war 1, 2 , or 3
• Wouldn't it be addition before subtraction to make the last answer 17?
• If you want to do addition first, you would have 20-2+1, but -2+1=-1, so 20-1=19.

first, 5 x 2 = 10.
Then, 10 + 3 = 13
• Good job! 👍
• I dont get it can someone explain?
• Hi! Don't worry, once you read this comment you might be able to understand.

So, most people when doing a problem with multiple operations, they tend to do the wrong operations first, and they get the wrong answer.

Order of operations is used to find the correct Order the operations you do first so that when you do them, you get the correct answer. Let me show you an example:

4 x 5 + 8 - 3
Order of operations says
Parenthesis
Expontents
Multiplication
Division
Subtraction.

We don't see parenthesis or exponents, but we do see multiplication. So, 4 x 5 =20. No division, but there is addition and subtraction. So,
20 + 8 = 28, 28 - 3 = 25.

You got this and don't give up! 😊
• I learned Pemdas in like, 5th grade
• I learned it in fourth what state/county are you in, only so I know what district taught fifth
• my teacher calls it pemdas
• pemdas is easy
• I have all the questions.
• 25 is it 25