5 km² 950 m² = 5000950 m²

7 hm² 5 m² = 70005 m²

3 dam² 4 m² = 304 m²

7543 mm² = 0,007543 m² 

45 dm² = 0,45 m² 

1250 cm² = 0,1250 m²

0,57 km² = 570000 m² 

5950 m²

70005 m²

304 m²

a )   12 h a   =   120   000 m 2           5 k m 2   =   5   000   000 m 2     b )   2500 d m 2   =   25 m 2           90   000 d m 2   =   900 m 2 c )   8 m 2   26 d m 2 = 8 26 100 m 2         45 d m 2 = 45 100 m 2 d )   20 m 2   4 d m 2 = 20 4 100 m 2         7 m 2   7 d m 2 = 7 7 100 m 2

15m² = 1 500dm²

12m² = 120 000cm²

1m² 45dm² = 145dm²

2m² 3dm² = 203dm²

160 000cm² = 16m²

345dm² = 3m² 45dm²

608dm² = 6m² 8dm²

15m2=1500dm2

12m2=120000cm2

1m245dm2=145dm2

2m23dm2=203dm2

300dm2=3m2

160000cm2=16m2

345dm2=3m245dm2

608dm2=6m28dm2 

Chúc bạn học giỏi .

cau 6: 45,000846

cau 7: 4,5002

\(8m^226dm^2=8,26m^2\)

\(20m^24dm^2=2004dm^2\)

\(45dm^2=0,45m^2\)

\(7m^27dm^2=70700cm^2\)

\(4cm^27mm^2=407mm^2\)

\(5dm^29cm^2=509cm^2\)

\(\frac{1}{2}ha=5000m^2\)

câu cuối hình như đề sai!

8m² 26dm²=8,26m²

20m² 4dm²= 2040dm²

45dm²=0,45m²

7m² 7dm²=707000cm²

4cm 7mm²=40,7mm²

5dm² 9cm²= 50,9cm²

1/2 ha =50000 m²

1/5 kg=20000dam²

đúng thì k cho mik nha

45dm2 6cm2 = 456cm2 

40 035cm2 = 400m2 35cm2

8m2 7cm2 = 807cm2

8763dm2 = 876 m2 30cm2

Kết Qủa Đây Nhé !

4506   cm2                            80007cm2

4m2 35cm2                           8m2 763cm2