a) 56dm2 = $\frac{56}{100}dm^{2}= 0,56dm^{2}$
b) 17 dm2 23cm2 =$17\frac{23}{100}dm^{2}= 17,23dm^{2}$
c) 23 cm2 =$\frac{23}{100}dm^{2}= 0,23dm^{2}$
d) 2 cm2 5mm2 =$2\frac{5}{100}cm^{2}= 2,05cm^{2}$
a) 56dm2 = $\frac{56}{100}dm^{2}= 0,56dm^{2}$
b) 17 dm2 23cm2 =$17\frac{23}{100}dm^{2}= 17,23dm^{2}$
c) 23 cm2 =$\frac{23}{100}dm^{2}= 0,23dm^{2}$
d) 2 cm2 5mm2 =$2\frac{5}{100}cm^{2}= 2,05cm^{2}$