4m2 90dm2 > 4m2 9dm2.
23m2 < 2300dm2
35dm2 = 3m^2 5dm2
5m2 7dm2 < 507 dm2.
a) 1/10 m^2= 1/100dm^2
b) 3/10 dm^2= 3/100 cm^2
c) 7/10 m^2= 7/1000cm^2
d) 1/20m^2= 1/200dm^2
4m^2 90dm^2 > 4m^2 9dm^2.
23m^2 < 2300dm^2
35dm^2 = 3m^2 5dm^2
5m^2 7dm^2 < 507 dm^2.