Equations vs Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) 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 containing an equals sign (=).

Front

Back

Expression

Front

What is the difference between an expression and an equation?

Back

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

Front

What does the term 'variable' mean in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in mathematical expressions or equations.

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.

Front

What is the purpose of parentheses in mathematical expressions?

Back

Parentheses are used to indicate which operations should be performed first in an expression.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that dictates the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often remembered by the acronym PEMDAS.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression, such as in 3x, where 3 is the coefficient.

Front

What is a term in mathematics?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both multiplied together.