Math Train Addition is a free online game designed to improve mental maths skills, particularly in addition. This engaging game presents math addition problems on a balloon, with 4 possible options on the right. Players must tap the screen when the correct answer is over the balloon, allowing it to hit the correct option. Incorrect answers reduce health, while collecting stars earns points. The game continues until time runs out or health reaches zero. With its easy-to-use interface and variety of math exercises, Math Train Addition is perfect for kids and adults looking to improve their addition skills.