12,8kg=12kg800g
4,25 tấn=4250kg
3,78 tấn=37,8 tạ
6 tạ 9kg=609kg
\(3.4m^2=3m^240dm^2\)
\(3.783ha=3ha7830m^2\)
\(2.6ha=26000m^2\)
\(4.5ha=450dam^2\)
\(5km72cm=\left(5+\dfrac{72}{10^5}\right)km\)
12,8kg=12kg800g
4,25 tấn=4250kg
3,78 tấn=37,8 tạ
6 tạ 9kg=609kg
3.4m2=3m240dm23.4m2=3m240dm2
3.783ha=3ha7830m23.783ha=3ha7830m2
2.6ha=26000m22.6ha=26000m2
4.5ha=450dam24.5ha=450dam2