A math game where users solve addition, subtraction, multiplication, and division problems within a 20-second time limit. Select symbols to input answers in a hatena box. Compete with friends for correct answers and track progress.
Practice arithmetic by combining cards to reach the number 20. Play single player, versus, or quest modes. Track progress and compete against others. Adjust difficulty levels and customize settings. Share high scores and challenge friends.
Practice mental math with customizable problem types including addition, subtraction, multiplication, fractions, and division. Set numerical ranges, session duration, and difficulty levels. Track progress and review results.
