Expressions

Front

What is an algebraic expression?

Back

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

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. For example, in the expression 6 + n, 6 is the constant.

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value. For example, in the expression 6 + n, n is the variable.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

What is the order of operations?

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). This is often remembered by the acronym PEMDAS.

Front

What is the result of (3 + 4)² - 32?

Back

The result is 17.

Front

What is the role of operations in an algebraic expression?

Back

Operations (like addition, subtraction, multiplication, and division) indicate how the numbers and variables in an expression are combined or manipulated.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the simplified form of 6(x - 2)?

Back

The simplified form is 6x - 12.

Front

True or False: Addition ALWAYS comes before subtraction in expressions.

Back

False.