TEKS 5.4B: Equations & Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, ×, ÷) 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 numbers for the variables and performing the operations.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not include an equality sign.

Front

What is a variable in mathematics?

Back

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

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the order of operations?

Back

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

Front

How do you represent a word problem as an expression?

Back

Identify the quantities involved, determine the operations needed, and write them in a mathematical format.

Front

What is a coefficient in an expression?

Back

A coefficient is a number that multiplies a variable in an expression.

Front

What does it mean to distribute in mathematics?

Back

To distribute means to multiply a single term by each term inside a set of parentheses.

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change, represented by a number.