Writing and Solving Expressions

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, and /) that represents a value.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not have an equality sign.

Front

What is the order of operations in mathematics?

Back

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

Front

How do you represent a division operation in an expression?

Back

Front

What does the variable 'x' typically represent in an expression?

Back

The variable 'x' is often used to represent an unknown value that can change or vary.

Front

How do you write an expression for the total cost if each item costs 'c' and 'n' items are bought?

Back

Front

What is the expression for finding the average of 'n' numbers?

Back

Front

Back

Front

How do you express the cost per ticket if the total cost is 'T' and 'x' tickets are bought?

Back