30m 25cm = 30 $\frac{25}{100}$ m
25km 7m = 25 $\frac{7}{1000}$ km
45kg 25g = 45 $\frac{25}{1000}$ kg
$8km^{2}$ $750m^{2}$ = 8 $\frac{750}{1000000}$ $km^{2}$
3050m = 3 $\frac{50}{1000}$ km
54dm = 540m
4535kg = 4 $\frac{535}{1000}$ tấn
$8000750m^{2}$ = 8 $\frac{750}{1000000}$ $km^{2}$
Cho Yu xin ctlhn nếu dc ạ!
#Yu