Red Sum is an engaging card game designed for Android users that tests and enhances your mathematical abilities. The gameplay revolves around strategically dragging cards into a designated red area to accumulate points, aiming to reach exactly 20. Players must carefully consider their moves, as exceeding 20 points will result in health damage, adding an exciting twist to the challenge. The game encourages players to think critically and plan their card placements to achieve victory without going over the limit.

This free-to-play game offers a simple yet addictive format that appeals to fans of puzzle and strategy games. With its focus on math skills and strategic decision-making, Red Sum provides a fun way to improve arithmetic abilities while enjoying a competitive experience. The intuitive interface and straightforward rules make it accessible for players of all ages, ensuring an enjoyable time for anyone looking to sharpen their math skills.