To convert Hectometers to kilometers you divide by 10:
8.7 / 10 = 0.87 kilometer
8.7 hectometers = 87 kilometers = FALSE.
Multiply centigrams by 10 to get milligrams:
4.02 x 10 = 40.2
4.02 centigrams = 40.2 milligrams = TRUE.
Milliliter to liter:
Divide milliliters by 1000:
0.001 / 1000 = 0.000001
0.001 milliliter = 0.1 liter = FALSE.
Meter to kilometer:
Divide meters by 1000:
0.004 / 1000 = 0.000004
0.004 meter = 0.000004 kilometer = TRUE.