Order of Operations and Expression Evaluation

The video tutorial explains how to evaluate a mathematical expression using the order of operations. It emphasizes the importance of simplifying expressions within parentheses first, followed by multiplication and division from left to right, and finally addition and subtraction. The tutorial uses the example expression 2 + 9 * (8 + 9) to demonstrate these steps, resulting in a final simplified value of 155. The process is verified using a calculator to ensure accuracy.

Why is it important to follow the order of operations when evaluating expressions?

• To make the expression look simpler.

• To obtain the correct result.

• To ensure the expression is evaluated quickly.

• To avoid using a calculator.

What is the first step in the order of operations?

• Multiplication and division

• Addition and subtraction

• Simplifying within parentheses

• Evaluating exponents

What is the result of simplifying the expression inside the parentheses: 8 + 9?

• 16

• 15

• 17

• 18

Which step can be skipped if there are no exponents in the expression?

• Addition and subtraction

• Simplifying within parentheses

• Evaluating exponents

• Multiplication and division

What operation should be performed after simplifying within parentheses?

• Subtraction

• Addition

• Multiplication

• Division

What is the result of multiplying 9 by 17?

• 153

• 154

• 156

• 155

After performing multiplication, what is the next step in the order of operations?

• Division

• Evaluating exponents

• Simplifying within parentheses

• Addition

What is the final result of the expression 2 + 9 * (8 + 9)?

• 156

• 155

• 154

• 153

How can you verify the result of an expression?

• By guessing

• By using a calculator

• By asking a friend

• By re-evaluating the expression manually

What is the purpose of using a calculator in verifying the result?

• To learn how to use a calculator

• To check for errors

• To make calculations faster

• To avoid manual calculations