Evaluate Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables (like x or y), and operations (like addition, subtraction, multiplication, and division).

Front

Evaluate the expression: 2x + 3 + x² for x = 4.

Back

27

Front

What does the expression $14.25p + $4.50 represent?

Back

It represents the total cost of ordering p CDs, where each CD costs $14.25 and there is a shipping charge of $4.50.

Front

Find the total cost for ordering 4 CDs using the expression $14.25p + $4.50.

Back

$61.50

Front

Evaluate the expression: 2a + 4b if a = 10 and b = 6.

Back

44

Front

What is the value of the expression 3x + 8 when x = 2?

Back

14

Front

Evaluate the expression: 8a - b if a = 10 and b = 6.

Back

74

Front

What is a variable in algebra?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What does it mean to evaluate an expression?

Back

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