Evaluating Expressions (Pre-Test)

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers and performing the operations.

Front

Evaluate the expression: b² + 4 when b = 3.

Back

13

Front

How would you represent 8⁶ in expanded form?

Back

8 x 8 x 8 x 8 x 8 x 8.

Front

Evaluate the expression: 6a - 3d when a = 1 and d = 2.

Back

0

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression.

Front

Identify the coefficient in the expression: 7h + 3.

Back

7

Front

What is a constant in mathematics?

Back

A constant is a fixed value that does not change.

Front

Which of the following is a constant: 4, 5x, w, +?

Back

4

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol (often a letter) that represents an unknown value.