Parts of an Expression

Front

What is a term in an expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, separated by addition or subtraction.

Front

How many terms are in the expression 7y + 3 - 7k - 2?

Back

There are 4 terms in the expression: 7y, 3, -7k, and -2.

Front

What is a variable in an expression?

Back

A variable is a symbol, usually a letter, that represents an unknown value in an expression.

Front

Identify the variables in the expression 3x + 9.

Back

The variable in the expression is x.

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change and does not have a variable attached to it.

Front

Identify a constant in the expression 3x + 2y + 7.

Back

The constant in the expression is 7.

Front

What is a coefficient?

Back

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

Front

What is the coefficient in the term 5x?

Back

The coefficient in the term 5x is 5.

Front

What is the difference between a term and a factor?

Back

A term is a single part of an expression, while a factor is a number or variable that is multiplied in a term.

Front

What does it mean to simplify an expression?

Back

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