This document discusses the order of operations using PEMDAS (Parenthesis, Exponents, Multiply, Divide, Add, Subtract). It provides examples of evaluating expressions using PEMDAS, including 187 - 18.7 = 168.3 and 30 + 3.2 + 0.3 = 33.5. It also gives the mnemonic "Please Excuse My Dear Aunt Sally" to help remember PEMDAS and provides practice problems for students to evaluate expressions following PEMDAS, such as 6 + 5 x 4 = 26.

1. PEMDAS Chapter 1.3 Algebra I

11. Respect, Responsible, Safe