There are several operations in math. At basic level, students solve problems that contain one operation which is quite easy. However, it gets a bit complex if you are asked to solve problems that contain multiple operations. If this is the case, students will be required to find the correct order for the operations. The formula for this is BODMAS or PEMDAS. This formula will guide you on which section of the equation to start solving. Have fun solving such problems while playing a zombie game online. For fourth grade, fifth grade, sixth grade and seventh grade students.