9.
a) 4,5 mm=0,45cm=0,045dm
b) 1 supra 100 Km=0,01km=10m
c)[tex]\frac{289}{500} =\frac{578}{1000} =0,578hm=5780cm[/tex]
d)0,003 dam=0,3dm
e)[tex]\frac{43}{125} =\frac{43*8}{125*8} =\frac{344}{1000} =0,344km=344m[/tex]
f)[tex]\frac{17}{25} =\frac{68}{100} =0,68m=68cm[/tex]