計算オンライン対戦 與 タイピングファイト オンラインでフレンド対戦 使用情況與統計

With friends! With players from around the world! Online math competition! Let's compete in calculation speed together! Compete against each other to see how fast you can solve a variety of addition problems. You can play against up to four other players in real time. You can play against your friends in subtraction, multiplication, and difficult math problems.