Expressions vs. Equations

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value but does not include an equality sign.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equals sign (=).

Front

Write the phrase as an expression: twenty times a number.

Back

20x

Front

Identify the equation: 5 + 8 = 13, 2x + 3, 5 + 9, 3 + x.

Back

5 + 8 = 13

Front

What is the quotient of y and 5?

Back

Front

Write the expression for a number decreased by 9.

Back

x - 9

Front

Write the equation for the sum of 6 and x being 11.

Back

x + 6 = 11

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign and represents a value, while an equation states that two expressions are equal.

Front

Write the expression for the product of 4 and a number.

Back

4x