Expressions vs. Equations

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations (like addition or subtraction) without an equal sign.

Front

What is an equation?

Back

An equation is a mathematical statement that shows two expressions are equal, using an equal sign.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

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

Back

The main difference is that an equation has an equal sign, while an expression does not.

Front

What does the equal sign (=) indicate in an equation?

Back

The equal sign indicates that the two sides of the equation have the same value.

Front

Can an expression be solved?

Back

No, an expression cannot be solved because it does not have an equal sign.

Front

What are variables in mathematics?

Back

Variables are symbols (like x or y) that represent unknown values in expressions and equations.

Front

What does it mean to evaluate an expression?

Back

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

Front

What operation does the word 'subtract' represent?

Back

The word 'subtract' represents the operation of subtraction.

Front

What is a Venn diagram used for in mathematics?

Back

A Venn diagram is used to show the relationships between different sets, including similarities and differences.