Wed. Flashcard #15-3

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 equals sign (=).

Front

Identify whether the following is an expression or an equation: 7 + 18 + 4 = 20 + 9

Back

Equation

Front

Identify whether the following is an expression or an equation: 12x + 4x

Back

Expression

Front

Identify whether the following is an expression or an equation: 4 + 9 + 3

Back

Expression

Front

Identify whether the following is an expression or an equation: 62 = 30 + 32

Back

Equation

Front

Identify whether the following is an expression or an equation: 20 + 9

Back

Expression

Front

What is the main difference between an expression and an equation?

Back

The main difference is that an expression does not have an equals sign, while an equation does.

Front

Give an example of a simple expression.

Back

An example of a simple expression is 3x + 5.

Front

Give an example of a simple equation.

Back

An example of a simple equation is 2x + 3 = 7.