Parts of an Expression

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in 3x, 3 is the coefficient.

Front

How many coefficients are in the expression 5a + 2b + 3?

Back

There are 2 coefficients: 5 and 2.

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 multiplied together.

Front

How many terms are in the expression 3a + 2b + c + 100?

Back

There are 4 terms: 3a, 2b, c, and 100.

Front

What is a variable in an expression?

Back

A variable is a symbol, usually a letter, that represents an unknown value. For example, in 3x, x is the variable.

Front

Identify the variables in the expression 3x + 9.

Back

The variable is x.

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. For example, in 3x + 7, 7 is the constant.

Front

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

Back

The constant is 7.

Front

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

Back

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

Front

What is the difference between a term and a coefficient?

Back

A term is a part of an expression that can include numbers and variables, while a coefficient is the numerical part of a term that multiplies the variable.