问题
填空题
20km2=______hm2 ;4.8hm2=______m2 ;0.003km2=______m2 ;3900cm2=______m2.
答案
(1)20km2=2000hm2 ;
(2)4.8hm2=48000m2;
(3)0.003km2=3000m2;
(4)3900cm2=0.39m2.
故答案为:2000,48000,3000,0.39.
20km2=______hm2 ;4.8hm2=______m2 ;0.003km2=______m2 ;3900cm2=______m2.
(1)20km2=2000hm2 ;
(2)4.8hm2=48000m2;
(3)0.003km2=3000m2;
(4)3900cm2=0.39m2.
故答案为:2000,48000,3000,0.39.