Order of operations online pirate game. This topic is basic pre-algebra for children in 2nd, 3rd, 4th, 5th, 6th and 7th grades. To solve problems that contain several operations, students have to watch out for the positions of the signs. This could impact the outcome or the solution if not taken into account. Students who do not follow the PEMDAS or BODMAS process end up getting it wrong. In this game, students solve over 15 problems and choose the correct answer in a set of choices. Only one answer is correct. The more answers you get right, the more chances you have of sinking the oponents ship. Keep practicing until you master this skill. Also download worksheets and test your skills with other problems not covered here.