7m2 = dm2
450 dm2 = 45000 cm2
4m2= 40000 cm2
9m 9dm2= 909 dm2
82 m 47 dm2= 8247 dm2
1/4 m2= 25 dm2
1/5 dm2= 20 cm2
7m2 =700dm2 450dm2 =4500cm2 4m2 = 4000cm2 9m9dm2 =909dm2 82 m 47dm2= 8247 dm2 1/4 m2 =25dm2 1/5dm2= 20cm2
7 m2 = 700 dm2
450 dm2 = 45000 cm2
4 m2 = 40000 cm 2
9 m 9 dm2 = 909 dm2
82 m 47 dm2 = 8247 dm2
1/4 m2 = 25 dm2
1/5 dm2 = 20 cm2
oi troi minh dang nghi con ko ra cau giup minh duoc ko