Răspuns:
Explicație pas cu pas: a)3t+ 43 kg= 3000 kg +43 kg= 3043 kg
28 kg+ 13000g= 28kg +13 kg= 41
7t+ 4q= 7000kg +400kg= 7400 kg
63 hg+18kg=63 hg + 180 hg= 243hg
b)36 000kg+5t= 36t+5t= 41t
4300q+3t=4300q + 30q=4330 q
36000kg+170t= 360q+1700q= 2060 q
18 000hg+2q=18q+2q=20q
