99Math

99math is an online learning platform that makes math practice interactive and social for students in grades 1–12. Designed primarily as a classroom tool, it helps teachers create game-based activities focused on the skills their students need to practice. Teachers can select from more than 1,000 math skills, generate a game, and share a code for students to join. Students participate through a web browser using a device, without needing individual accounts; they can choose a nickname and avatar before playing.

The platform offers quizzes, timed challenges, and math puzzles to support practice across a range of abilities. Teachers can use it to assign curriculum-aligned activities and review detailed reports on student performance, helping identify areas where additional support may be useful. Students receive feedback, follow their progress, and can take part in friendly competition with classmates. 99math can be used at school or at home, including by parents seeking to supplement classroom learning.