As one of the masterminds behind the Scary Movie franchise, Marlon Wayans has become a go-to actor for great parody films. Marlon Wayans's highest grossing movies have received a lot of accolades over the years, earning millions upon millions around the world.
Hecto- means one hundred, therefore 1 hectometer = 100 meters = 10 decameters. 1 kilometer = 10 hectometers. The only ones your daughter needs to bother about are millimeter, centimeter, and kilometer, and she should learn to manipulate these confidently. 1 meter = 100 centimeters, or 1000 millimeters.
When converting measurements it is often helpful to use a little algebra. It is also important to memorize a couple of facts. Most people don't know how many kilometers (km) are in a meter (m), but they do know how many meters are in a kilmeter. There are 1000 m in 1 km. Therefore there is .001km in a meter or 10^-3 km in a meter.