Expression Flashcard

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations but no variables.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operations.

Front

In the expression 7x + 2y + 5, what is the constant term?

Back

The constant term is 5.

Front

What does it mean to combine like terms?

Back

Combining like terms means to add or subtract terms that have the same variable raised to the same power.

Front

What is the variable in the expression 7r?

Back

The variable is r.

Front

Evaluate the expression 5 x (2 + 1).

Back

The result is 15.

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

What is the coefficient in the expression 7x?

Back

The coefficient is 7.

Front

What is the difference between a numerical expression and an algebraic expression?

Back

A numerical expression contains only numbers and operations, while an algebraic expression contains numbers, variables, and operations.

Front

What does it mean for two terms to be 'like'?

Back

Two terms are like if they have the same variable raised to the same power.