升=立方厘米
1500毫升=升
4600立方厘米=立方分米.
×4=
25÷ =
8÷ =
+ =
÷ =
× =
0× =
1﹣ =
50×( + )=
5﹣ ﹣ =
÷7+ × =
×[( ﹣ )×36]=
5﹣ × ﹣ =
+0.25+ +75%=