题目内容
| 解方程． x-
| x÷
|
|
①x-
x=
x=
x×4=
×4
x=1.2
②x÷
+
=
x×
+
=
x×
+
-
=
-
x×
=
×
x=
③
÷x=
×x÷x=
×x
x×3=
×3
x=2.5
| 3 |
| 4 |
| 3 |
| 10 |
| 1 |
| 4 |
| 3 |
| 10 |
| 1 |
| 4 |
| 3 |
| 10 |
x=1.2
②x÷
| 7 |
| 5 |
| 1 |
| 5 |
| 4 |
| 5 |
x×
| 5 |
| 7 |
| 1 |
| 5 |
| 4 |
| 5 |
x×
| 5 |
| 7 |
| 1 |
| 5 |
| 1 |
| 5 |
| 4 |
| 5 |
| 1 |
| 5 |
| 5 |
| 7 |
| 7 |
| 5 |
| 3 |
| 5 |
| 7 |
| 5 |
x=
| 21 |
| 25 |
③
| 5 |
| 6 |
| 1 |
| 3 |
| 5 |
| 6 |
| 1 |
| 3 |
| 1 |
| 3 |
| 5 |
| 6 |
x=2.5
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