Practice how to convert fractions to decimals in this En garde math game for 4th, 5th, 6th, 7th grade children. Math En garde interactive online fun game. This game is an interactive online test for children to practice their skills on fractions. Each game has multiple choice answers to problems. These games are suitable homeschool and classroom practice for children in Kindergarten, 1st, 2nd, 3rd, 4th, 5th, 6th and 7th grades. Click start and begin practicing.