Răspuns:
3m + 400cm= 300cm+ 400cm= 700cm
495-187= 308 mm
335m + 1570hm= 335 m + 157000m= 157335m
8×130m =1040 m
1190mm÷7= 160mm
400dam+3dam+20dam= 423dam
sper ca team ajutat