Expression or Equation

Front

What is an expression in mathematics?

Back

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

Front

What is an equation in mathematics?

Back

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

Front

Is '7y' an expression or an equation?

Back

Expression.

Front

Is '81 - n' an expression or an equation?

Back

Expression.

Front

Is '18 ÷ u = 9' an expression or an equation?

Back

Equation.

Front

Is '33 - g' an expression or an equation?

Back

Expression.

Front

Is 'b + 3 = 19' an expression or an equation?

Back

Equation.

Front

What does the variable 'y' represent in an expression like '7y'?

Back

The variable 'y' represents an unknown value that can change.

Front

What is the purpose of using expressions in mathematics?

Back

Expressions are used to represent values and relationships between quantities without stating a specific equality.

Front

What is the difference between an expression and an equation?

Back

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