Basic subtraction of numbers up to twenty online pirate game. In this game students learn how to subtract small numbers ranging from 1 to 20. Here the game can be fun is students have developed great mental math skills. If that is not the case, head over to teh worksheets section and download worksheets for more practice. This game is a pirate themed video game. The goal is to review math skills while having fun. Such math activities are great extra tools for teaching kids while at home or in the classroom. Teachers will energize their boring classes easily. Each game tracks your overall score at reports it in the end. With such instant feedback, teachers can monitor the progress of theor students. Have fun and learn.