Evaluating Algebraic Expressions Made Simple

What does it mean to evaluate an expression?

• To simplify the expression

• To solve for the variable

• To find the value of the expression when the variable is replaced by a given number

• To find the value of the variable

What is the key difference between evaluating and solving?

• Evaluating involves finding the value of the expression when the variable is replaced by a given number

• Solving involves simplifying the expression

• Solving involves finding the value of the expression

• Evaluating involves finding the value of the variable

What is the first step in the order of operations?

• Exponents

• Parentheses

• Addition

• Multiplication

How should multiplication and division be handled in the order of operations?

• In the order they appear from left to right

• They can be done in any order

• Division first, then multiplication

• Multiplication first, then division

What is the correct order of operations?

• Parentheses, Exponents, Addition, Subtraction, Multiplication, Division

• Multiplication, Division, Parentheses, Exponents, Addition, Subtraction

• Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

• Exponents, Parentheses, Multiplication, Division, Addition, Subtraction

What is the value of 2x when x equals 2?

• 6

• 2

• 4

• 8

What is the value of 3x^2 when x equals 4?

• 64

• 48

• 24

• 12

What is the value of negative x when x equals 5?

• -1

• 1

• 5

• -5

What is the value of 4 squared?

• 12

• 20

• 16

• 8

Why is it good practice to use parentheses when evaluating expressions?

• To follow the order of operations

• To make the expression look neat

• To avoid confusion with fractions, decimals, and negative signs

• To simplify the expression