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 include 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 including an equality sign (=).

Front

Is '9 ÷ h' an expression or an equation?

Back

Expression.

Front

Is 'x + 15' an expression or an equation?

Back

Expression.

Front

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

Back

Equation.

Front

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

Back

Expression.

Front

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

Back

Expression.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What is a constant in mathematics?

Back

A constant is a fixed value that does not change, such as numbers like 5, -3, or 0.