0,0002hm =......m=.....cm 0,05mg =......g=......kg 2,05kg =.....g=.....mg

1. 0,0002 hm = 0,02 m = 2 cm
2. 0, 05 mg = 0,00005 g = 0,00000005 kg
3. 2,05 kg = 2050 g = 2050000 mg