1 m2 =( 100) square decimeter =( 10000) square centimeter.

5 square meters =(500) square decimeter

9 square decimeter =(900) square centimeter

400 square meters =(40000) square decimeter

300 cm2 =(3)DM2

1500CM2=( 15)DM2

3,200 square kilometers =(32)M2

2400 km2 =(24)M2

2000 cm2 =(20)DM2