This is a graphic organizer that explains each step in adding or subtracting complex numbers in rectangular form. A worked example is included on the reverse side. This organizer is useful for students new to the topic, struggling learners, and also any learners who need very concrete instructions for solving these types of problems. Highly recommended for differentiating in mainstream classrooms and for pull-out mathematics classes. During the corresponding lessons, I make these available to all my students. Graphic organizers are also useful for students who have missed lessons and who need to be able to, as independently as possible, catch up to the rest of the class.