Đáp án:
\(\begin{array}{l}
a.\\
450g = 4,5lang = 0,45kg\\
b.\\
250000ml = 250l = 0,25{m^3}\\
c.\\
0,2kg = 2lang = 200g\\
d.\\
37000ml = 37l = 0,037{m^3}\\
e.\\
0,3{m^3} = 300l = 300000ml\\
f.\\
150g = 1,5lang = 0,15kg\\
g.\\
1500g = 15lang = 1,5kg\\
h.\\
55000ml = 55l = 0,055{m^3}
\end{array}\)