x-x=15 40%:x=0.2:4.5 25(x+13)=650
+
x=2 8∶x =
∶
50%x-9×3=25
4.2÷0.07= | 0.33-0.23= |
|
|
4.6+54= |
| 1÷30%= | 4÷ |
2÷0.25= | 3.5÷70%= | ||
8×12.5%= | 0.33= | 1.92÷0.04= | ( ):10=6:5 |
1%÷0.1-0.1= | 99×37+37= |
x-=
-x=
x+
=
3.14×4= | 100×80%= | 105%+50%= | 3.14×9= | 7× |
|
| 1-75%= | 0.1÷10%= |