Join the fun and practice math with our app! Perfect for children just starting to learn addition and subtraction. We've designed it to be fast-paced and engaging. === How to play === 1. Choose from three modes: addition, subtraction, and mixed. 2. Each mode has 16 levels, starting with easy problems and gradually getting more difficult. 3. After a problem is displayed, a heart mark will fall from the top. Tap it to start a hint animation. * Note: The "hint" button is available in the addition and subtraction modes until level 8, and in the mixed mode until level 4. === Game design === The difficulty gradually increases, starting with single-digit addition without carrying, then single-digit addition with carrying, followed by addition of two-digit and one-digit numbers, and finally addition of two-digit numbers. After each problem is displayed, there is a short delay before the answer choices are presented. This allows children to practice doing the math in their heads before looking at the choices. In the beginning, it's a good idea to use the heart-shaped hint button and take your time, but as children get more comfortable, encourage them to answer as quickly as possible. === From the developer === With beautiful graphics, animations, and fun music, let's make math practice enjoyable!