Apply the order of operations to simplify a large numeric expression

The video tutorial explains the order of operations, known as PEMDAS, which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). The instructor emphasizes the importance of following this order to solve mathematical expressions correctly. The tutorial includes examples demonstrating how to apply these rules, focusing on grouping symbols, multiplication, division, addition, and subtraction. The video concludes with a step-by-step calculation to reinforce the concepts taught.

Describe the process of simplifying an expression with parentheses.

What steps should be taken to perform addition and subtraction in an expression?