1 km =1000m1m =10 decimeter1decimeter = 10cm.
1cm = 10mm 1m = 100cm 1m = 1000mm。
Length is a measure of one-dimensional space. The length is usually in kilometers (km) and? Meter (m), decimeter (dm), centimeter (cm), millimeter (mm),? Micron (um), etc.
Length unit conversion phrase:
Make it bigger and smaller, and then move it to the right. If there are several "0s" in the propulsion speed, move it several times.
From small to large, moving to the left, the rate of progress has several "0", so moving a few.
Rice, rice, rice is the boss, decimeter is the second child,
Cm cm is the third and mm mm is the fourth.
Rice is bigger than rice. How much bigger? Is ten times;
Decimeter is bigger than centimeter, how much bigger, ten times bigger;
Centimeter is bigger than millimeter, how much bigger, ten times bigger.
Length unit conversion is a way of length conversion. The unit of length refers to the basic unit of measuring spatial distance, and it is the basic unit of measurement formulated by human beings to standardize the length.
At present, there are many types of conversion methods of length units in the world, including China traditional length units, international standard length units, English length units and astronomical length units.
The traditional units of length in China are Li, Zhang and Chi. In the international system of units, the standard unit of length is "meter", which is represented by the symbol "m". These units of length are all metric units.
A few European and American countries, mainly Britain and the United States, use English units, so they use different units of length, mainly miles, yards, feet and inches. Astronomy often uses "light year" as the unit of length, which is the distance traveled by light in vacuum 1 year, so it is also called light year.