Evaluate Expressions with Variables

Front

What is the value of 3h if h=3?

Back

9

Front

What is the value of 4w + 3 if w=2?

Back

11

Front

What do we call a number used to multiply a variable?

Back

coefficient

Front

What is the value of n+n+5+2n if n=0?

Back

5

Front

What is the value of r + b if r=3 and b=5?

Back

8

Front

What is a variable in mathematics?

Back

A symbol that represents an unknown number.

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operations.

Front

What is a constant in mathematics?

Back

A fixed value that does not change.

Front

What is the difference between a term and an expression?

Back

A term is a single number or variable, while an expression is a combination of terms.

Front

What does it mean to evaluate an expression?

Back

To find the value of the expression by substituting variables with numbers.