Question

[cho]

a, 7 km2 =         m2

8,5 ha =             m2

300dm2 =           m2

4ha  =            m2

30 dm2 =                    m2 

515 dm2 =                 m2

Answer 1

[Trần Nhật Quỳnh]

7km² = 7 000 000m²

8, 5ha = 85 000m²

300dm² = 3m²

4ha = 40 000m²

30dm² = 0, 3m²

515dm2 = 5, 15m²

Answer 2

[Hoàng Văn Dũng]

a,7 km²=7000000 m²

8,5 ha=8500000m²

300 dm²=3 m²

4 ha=40000m²

30 dm²=0,3 m²

515 dm²=5,15 m²