Identify Parts of an Expression

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operations (like addition, subtraction, multiplication, and division) but does not have an equal sign.

Front

How many terms are in the expression 3x + 4y - 5?

Back

There are 3 terms in the expression: 3x, 4y, and -5.

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. In the expression 2y + 5x + 12, the constant is 12.

Front

What is a variable in an expression?

Back

A variable is a symbol (usually a letter) that represents an unknown value. In the expression 2y + 5x + 12, the variables are y and x.

Front

What is a coefficient?

Back

A coefficient is a number that is multiplied by a variable in an expression. In the expression 4x, the coefficient is 4.

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 difference between an expression and an equation?

Back

An expression is a mathematical phrase without an equal sign, while an equation states that two expressions are equal and includes an equal sign.

Front

Identify the terms in the expression 5a + 3b - 2c + 7.

Back

The terms in the expression are 5a, 3b, -2c, and 7.

Front

What is the role of parentheses in an expression?

Back

Parentheses indicate which operations should be performed first in an expression.

Front

What does it mean for an expression to be simplified?

Back

Simplifying an expression means to combine like terms and reduce it to its simplest form.