Practice operations including addition, subtraction, multiplication, and division. Solve problems with natural handwriting input. Adjust difficulty based on skill level. Earn rewards and bonuses for progress.
Solve problems by taking photos. View detailed solving steps. Perform addition, subtraction, division, and multiplication. Support 12 significant digits. Switch between landscape and portrait mode. No ads.
Play card game using chess cards to form valid sets by melding new cards and discarding trash cards. Manage hand to create combinations of colors. Track progress and compete against other players.
