(1)3km=3000m(2)500cm=5m(3)lm=100cm(4)60mm=6cm(5)4000m=4km(6)ldm=10cm(7)12m=120dm(8)6700mm=670cm(9)4cm5mm=45mm故答案为:3000,5,100,6,4,10,120,670,45.相关推荐 1填一填.3km=___m500cm=___mlm=___cm60mm=___cm4000m=___kmldm=___cm12m=___dm6700mm=___c...