Day 87: C4U 6.PFA.3 Expression/Equation Vocabulary

Front

In the equation 6x − 3y = 18, what is y?

Back

y is a variable.

Front

What is a single number, a variable, or numbers and/or variables multiplied together? (EX: 4, abc, 5w)

Back

This is called a term.

Front

In the equation 6x − 3y = 18, what is 3?

Back

3 is a coefficient.

Front

What do we call a letter in math that represents an unknown number?

Back

This is called a variable.

Front

In the equation 8x - 4 = 12, what is 8?

Back

8 is a coefficient.

Front

What is the term for a number that does not change in an equation?

Back

This is called a constant.

Front

What is the mathematical term for the symbols used to represent operations (like +, -, ×, ÷)?

Back

These are called operators.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators without an equality sign.

Front

What is the difference between an equation and an expression?

Back

An equation has an equality sign, while an expression does not.

Front

In the expression 5x + 2, what is 5?

Back

5 is a coefficient.