直接写得数.
4÷40%=×=20×5.5=(+)×4=-=2.9+3.4=0.1÷0.01=6--=÷3=6×=÷=1÷-÷1=
网友回答
解:4÷40%=10;???????? ×=;?????????? 20×5.5=110;?????????(+)×4=1;
-=;????????????? 2.9+3.4=6.3;?????????0.1÷0.01=10;???????? 6--=5;
÷3=;?????????????? 6×=4;???????????? ÷=4;??????????????1÷-÷1=2.
故