Why do astronauts want to study subtraction?

Astronauts study subtraction as part of their training to enhance their problem-solving and critical thinking skills, which are essential for navigating complex situations in space. Subtraction helps them manage resources, such as fuel and supplies, and perform calculations necessary for mission success. Additionally, understanding mathematical concepts allows astronauts to communicate effectively with ground control and make quick decisions during emergencies. Overall, mastering subtraction contributes to their overall preparedness for the challenges of space missions.