直接写出得数
3.5×0.1=
3.6÷0.09=
200×0.04=
0.21×0.3=5.2÷13=0.57÷0.57=2.9a-0.2a=300÷0.5=
网友回答
解:3.5×0.1=0.35;???????? ?? 3.6÷0.09=40;????????????200×0.04=8;????????????0.21×0.3=0.063;
5.2÷13=0.4;??????????????????0.57÷0.57=1;??????????? 2.9a-0.2a=2.7a;?????????300÷0.5=600;
故