0.7×0.3=
6.4÷0.8=
250×0.04=
7.2×3=
5.5÷1.1=
0.2×0.4=
0.27÷0.9=
5.8÷0.29=
0.4×2.5=
0.3×3.6=
0.24×0.5=
0.05×7=
0.81÷0.9=
0÷42=
5.7÷100=
4.2÷0.06=
6.3÷0.7= 0.8÷2= 2.8×9+2.8= 5×5÷5=
6.6÷0.66= 1.5×5= 7.5+2.5×4= 1.25×8÷1=
①x-6.75=1.68
②0.7x=4.2
③5x+20=76
④4×(0.3+x)=4.8
⑤0.7x+6×5=37
⑥(10x-25)÷5=15
-2.7=2.7 6.54+=8 8.41.6=10 9.54.8=4.7
1÷11=0.0909… 2÷11=0.1818… 3÷11=0.2727… 4÷11=0.3636…
分析:因为( )一定,所以( )和( )成( )比例关系。