Equations and Expressions Vocab

Front

What is a dependent variable?

Back

A dependent variable is a variable whose value depends on the value of another variable. It is often what you measure in an experiment.

Front

What is the Order of Operations?

Back

The Order of Operations is a set of rules that determines the sequence in which calculations are performed in an expression. It is often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

Front

What does PEMDAS stand for?

Back

PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in 8m, 8 is the coefficient.

Front

What is a variable in an expression?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation. For example, in 8m, m is the variable.

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. In the expression 8m + 5, 5 is the constant.

Front

What is the Distributive Property?

Back

The Distributive Property states that a(b + c) = ab + ac. It allows you to multiply a single term by two or more terms inside a set of parentheses.

Front

What is an expression?

Back

An expression is a combination of numbers, variables, and operations (like addition and multiplication) that represents a value.

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).

Front

How do you solve the expression 3(4 + 5) - 2^2?

Back

First, apply the Order of Operations: 3(4 + 5) = 3(9) = 27. Then, calculate 2^2 = 4. Finally, 27 - 4 = 23.