teman teman tolong dijawab

1. 3kg = 30 hg +7 hg = 37 hg
3. 6hg =600 g+300 g =900 g
5. 7hg = 700 g +45 g = 745 g
7. 8 kg = 80 hg - 17 hg = 63 hg
9.6 hg = 600 g - 400 g = 200 g