Răspuns:
1.20m+2dam+31dm=200dm+200dm+31dm=431dm
b.36cm+120mm-2dm=36cm+12cm-20cm=28cm
c.1480dam-100dam+240dam+5dam=1380dam+245dam=1625dam
cred ca te-ai prins mai departe :)) sper ca te-am ajutat
Explicație: