等量关系式:
列方程解答:
3.2a﹣0.2a=
2.8+3.5=
10﹣2.3=
0.25×40=
0.45÷0.3=
1.1×0.9=
1.6÷0.1=
1.5÷0.05=
16×0.01=
0.3×9=
1.25×8=
0.25×4=
50÷0.5=
0.82÷0.2=
0.81÷0.9=
4.8÷0.03=