6th Grade Milestone Review - Variables and Expressions

Front

What is a variable?

Back

A symbol used to represent an unknown value, often denoted by letters like x, y, or z.

Front

What is an expression?

Back

A combination of numbers, variables, and operations (like addition and multiplication) that represents a value.

Front

What is a coefficient?

Back

The number that is multiplied by a variable in an expression, for example, in 5x, 5 is the coefficient.

Front

What is a term in an expression?

Back

A single mathematical expression that can be a number, a variable, or a combination of both, separated by + or - signs.

Front

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

Back

Count the number of separate parts in the expression that are added or subtracted.

Front

What is a constant in an expression?

Back

A fixed value that does not change, such as the number 9 in the expression 3x + 9.

Front

What is the difference between a variable and a constant?

Back

A variable can change and represent different values, while a constant remains the same.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What are like terms?

Back

Terms that have the same variable raised to the same power, such as 2x and 3x.

Front

What is the degree of a term?

Back

The exponent of the variable in a term; for example, in 4x^2, the degree is 2.