Math 8 Unit 4: Writing Expressions & Equations

Front

Write the expression: 4 less than 5 times p

Back

5p - 4

Front

Write the expression: Five times a number plus 4

Back

5n + 4

Front

Write the expression: Alicia had 10 cookies then she ate some

Back

10 - n

Front

Write the expression: four more than the number of books

Back

b + 4

Front

Write the equation: The quotient of a number and 3 is 9.

Back

n/3 = 9

Front

Define an expression in mathematics.

Back

A combination of numbers, variables, and operators (like +, -, *, /) that represents a value.

Front

What is a variable in mathematics?

Back

A symbol (often a letter) that represents an unknown value.

Front

What does it mean to 'evaluate' an expression?

Back

To calculate the value of an expression by substituting numbers for variables.

Front

What is the difference between an expression and an equation?

Back

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

Front

Write the expression: The sum of a number and 7.

Back

n + 7