a: \(20dm^25\operatorname{cm}^2=2005\operatorname{cm}^2\)

\(700dm^2=70000\operatorname{cm}^2\)

\(605dm^2=6m^25dm^2\)

b:\(230dm^2=23000\operatorname{cm}^2\)

\(60dm^2=6000\operatorname{cm}^2\)

\(380m^2=38000dm^2\)

6m²9dm²=609dm²

8m²27cm²=80027cm²

20dm²=2000cm²

5000dm²=50m²

tick cho mình hoặc **** cho mình nhé

ai vâòy 

\(2300cm^2=230000dm^2\)

\(3dm^212cm^2=312dm^2\)

\(2010m^2=201000dm^2\)

Còn câu nữa hả .

\(3m^220dm^2=320dm^2\)

Hk tốt

1m2 = 100 dm2

400 dm2 = 4 m2

100dm2 = 1 m2

2110 m2 = 211000 dm2

1m2 = 10000 cm2

15m2 = 150 000cm2

10 000 cm2 = 1 m2

1dm22cm2 = 1002 cm2

5m2 9dm2=509 dm2

1m2 35dm2=135 dm2

3075 cm2=30dm2 75 cm2

509 dm²

135 dm²

30dm² 75cm²

1m2=10dm2

mink trar lời đầu tiên tick nha!!!

1m²=100dm²

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 .

a) 1m² = 100 dm²

24m² = 2 400 dm²

500 dm² = 5 m²

b) 1m² = 10 000 cm²

892m² = 8 920 000 cm²

300 000 cm² = 30 m²

\(3m^221m^2=2400dm^2\)

\(1m^245cm^2=10045cm^2\)

\(1km^2500000m^2=1500000m^2\)

\(20km^2=20000000m^2\)

\(2km^2345m^2=2000345m^2\)

\(1m^22345cm^2=12345cm^2\)