b)3dam + 197 dam=200000 cm
15 hm + 14 hm= 29000 dm
94 cm + 15 cm= 1090 mm
56 dm + 43 dm= 9900 mm
72 km + 14 km= 8600 dam
d) 114 hm - 86 hm= 28000 dm
1001 dam + 999 dam= 20 km
208 hm - 108 hm= 10 km
17 dam + 182 dam= 199000 cm
48 mm - 30 mm= 18 mm
Aceasta este rezolvarea