Parts of an Expression

Front

What is a constant in an expression?

Back

A constant is a number that does not change and has no variable attached to it.

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value.

Front

What is a coefficient?

Back

A coefficient is a number that is multiplied by a variable in 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.

Front

How do you identify the number of terms in an expression?

Back

Count each separate part of the expression that is added or subtracted.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations, while an equation states that two expressions are equal.

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.

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power.

Front

How many coefficients are in the expression 5x + 3y - 2?

Back

There are 2 coefficients: 5 (for x) and 3 (for y).

Front

List the terms in the expression 4a - 7 + 2b.

Back

The terms are 4a, -7, and 2b.