Sky35 is a free card game developed by Linhlinhh24 for the Android platform. The game is designed to test your math skills in a fun and interactive way. The objective of the game is to solve math problems as quickly as possible to progress through the levels.

The gameplay is simple yet challenging. You play as a ninja boy who must solve math problems to defeat their opponents. The game features addition, subtraction, multiplication, and division problems, and the difficulty increases as you progress through the levels. The game also offers a multiplayer mode where you can challenge your friends to see who can solve the math problems the quickest.

Overall, Sky35 is an excellent game for anyone looking to test their math skills while having fun. The game's graphics are visually appealing and the gameplay is engaging. The only drawback is that the game can become repetitive after a while. Nevertheless, it is definitely worth a try for anyone looking for a fun and challenging math-based game.