1. The document describes implementing the 5S methodology (Sort, Set In Order, Shine, Standardize, Sustain) to organize numbers from 1 to 49 to make it easier for a team to strike them out in sequence within a time limit. 2. In the first round, numbers 50-90 were removed. In subsequent rounds, the numbers were organized from left to right and bottom to top, then in a standard order. 3. The final round pointed out that without standardization and sustaining the system, it is difficult to notice when items are missing and complete the task.