Răspuns :
1.08dm²=108cm²,
0.0054m²=54cm²;
21600mm²=216cm².
Asadar, 48cm²+1.08dm²-0,0054m²+21600mm²=
48cm²+108cm²-54cm²+216cm²=318cm².
1.08dm²=108cm²,
0.0054m²=54cm²;
21600mm²=216cm².
Asadar, 48cm²+1.08dm²-0,0054m²+21600mm²=
48cm²+108cm²-54cm²+216cm²=318cm².