This math topic focuses on determining the scale of a map when distances are represented in metric units. The problems involve multiplication by powers of 10, conversions within metric measurements (like converting centimeters to millimeters or vice versa), and understanding the representation of distances on a scaled map to determine the numerical ratio between the map's units and actual units. The scale calculations are performed using metric measurements such as centimeters and millimeters, and each problem provides multiple choice answers to select from.