Order of Operations and Expressions

This video tutorial is the second in a series on the order of operations. It begins with an introduction and a complex problem, which is solved step-by-step by applying the order of operations. The tutorial emphasizes the importance of handling parentheses first, followed by multiplication and division, and finally addition and subtraction. A second problem is presented to reinforce these concepts, and the use of parentheses is discussed to prevent errors. The video concludes by encouraging practice to master these skills.

What is the first step in solving an expression according to the order of operations?

• Addition

• Multiplication

• Division

• Parentheses

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CCSS.5.OA.A.2

CCSS.5.OA.A.1

In the expression 5 + 2 * 3, which operation should be performed first?

• Division

• Subtraction

• Multiplication

• Addition

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

After performing multiplication and division, what is the next step in solving an expression?

• Exponentiation

• Subtraction

• Parentheses

• Addition

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

In the expression 1 + 2 * 2 + 1 * 2 + 1, what is the result after performing all multiplications?

• 5

• 6

• 7

• 8

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CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Why might you add parentheses to an expression even if they are not necessary?

• To make it more complex

• To make the expression longer

• To change the result

• To clarify the order of operations

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CCSS.5.OA.A.2

CCSS.5.OA.A.1

In the expression 3 * 2 + 1, what is the result if you follow the order of operations?

• 5

• 6

• 7

• 8

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

How do parentheses affect the order of operations in an expression?

• They make multiplication come first

• They have no effect

• They force operations inside them to be done first

• They make addition come first

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the result of the expression 3 * (2 + 1)?

• 7

• 9

• 6

• 5

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

In the expression 3 * 2 + 1, what is the result if you perform addition first?

• 5

• 6

• 7

• 9

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CCSS.6.EE.A.1

Why is it important to understand the order of operations?

• To solve math problems correctly

• To perform addition first

• To make math problems more difficult

• To avoid using parentheses

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CCSS.6.EE.A.1