0.99 3030÷4040 75%
0.01÷99% 0.01
0.37+0.73=
2.5÷0.05=
0.15×4=
÷3=
×1 =
1.2× =
45×20%=
÷ =
﹣ =
9.3﹣3.9=
问题:
列式: