2nd grade subtraction facts 1 to 20 Fishing game - Review some facts related to subtraction of numbers from 1 to 20. The problems in this game focus on small numbers which will trigger students to put their mental math abilities to the test. As soon as a student solves a problem and finds the correct answer, he/she has to select the correct answer and submit. Feedback will be instant and an aggregate of points scored during the game will be carried forward. At the end of this math test students will know their score. In case of difficulties, contact your teacher to guide you. This game is for grade 1, 2 and 3 students. Have fun online and please share on your networks. All the activities here are free including the current game. Have fun with this fishing math game.