The document contains a series of math problems involving converting between different units of measurement for distance: 1) Converting between kilometers, hectometers, decameters, meters, decimeters, centimeters, and millimeters. 2) Completing equations converting between units. 3) Writing distances in complex numeric form using combinations of units of measurement. 4) Converting distances expressed as combinations of units into single units of meters and centimeters. 5) Calculating the distance between the sun and Saturn using the scale factor between Earth's and Saturn's distance from the sun.