Calculează:
a) 80 hm + 19 dam =
2000 cm - 176 dm =
dm
b) 6 km - 32 hm =
dam
13 cm + 8 dm =
mm
![Calculeazăa 80 Hm 19 Dam 2000 Cm 176 Dm Dmb 6 Km 32 Hm Dam13 Cm 8 Dm Mm class=](https://ro-static.z-dn.net/files/d52/9d25e3510e4a926d37002254426ab9ea.jpg)