equations vocabulary

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operations (like addition and subtraction) that represents a value but does not include an equality sign.

Front

Back

There are 3 terms in the expression: 2x, 5, and -3y.

Front

In the expression 8r + 3, what is the constant?

Back

The constant is 3.

Front

What is a constant in mathematics?

Back

A constant is a number that does not change and stands alone without any variable attached.

Front

Define an equation.

Back

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

Front

What is a coefficient?

Back

A coefficient is a numerical factor in a term of an expression, representing how many times the variable is multiplied.

Front

What is a variable?

Back

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

Front

How do you identify the terms in an expression?

Back

Terms in an expression are separated by addition or subtraction signs.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign and cannot be solved, while an equation does have an equals sign and can be solved.

Front

What is the term for the part of an expression that contains a variable and its coefficient?

Back

This part is called a term.