This topic focuses on converting metric length units from larger to base units while incorporating decimals. It enhances understanding of units like meters (m), kilometers (km), hectometers (hm), decameters (dam), and decimeters (dm), as well as their conversions among each other. Each question provides a metric length that students need to convert to a different unit. Multiple choice answers are provided for each conversion problem, allowing students to practice and verify their understanding of metric length conversions. This subject forms part of broader lessons on speed, distance, and time.