How to Add, Subtract, Multiply, and Divide Integers

Math with Mr. J

This comprehensive math tutorial guides students through the fundamental rules of performing operations with integers: addition, subtraction, multiplication, and division. The video systematically breaks down each operation into its own section, providing clear rules and step-by-step examples that cover various scenarios involving positive and negative numbers. Mr. J uses a digital chalkboard format to visually demonstrate how to set up and solve these problems, offering multiple mental models for understanding the concepts. The content covers key topics including the absolute value method for adding integers, the "Keep Change Change" or "Add the Opposite" method for subtraction, and the sign rules for multiplication and division. The video specifically addresses the conceptual difficulty of subtracting negative numbers by using a financial debt analogy, helping students visualize why subtracting a negative results in a positive increase. This video is an excellent resource for middle school math classrooms, serving either as an introduction to integer operations or a solid review for students struggling with the signs. Teachers can use it to flip the classroom, assigning it as homework before a practice day, or play specific segments in class to introduce one operation at a time. The clear visual rules displayed at the top of the screen for each section make it particularly useful for students to pause and copy down into their notes.