题目内容
x-
| x÷
| x+
|
①x-
x=
x=
x×
=
×
x=
;
②x÷
=
x×
=
x×
×
=
×
x=
;
③x+
x=
x=
x×
=
×
x=1.
| 1 |
| 5 |
| 3 |
| 10 |
| 4 |
| 5 |
| 3 |
| 10 |
| 4 |
| 5 |
| 5 |
| 4 |
| 3 |
| 10 |
| 5 |
| 4 |
x=
| 3 |
| 8 |
②x÷
| 2 |
| 9 |
| 6 |
| 7 |
x×
| 9 |
| 2 |
| 6 |
| 7 |
x×
| 9 |
| 2 |
| 2 |
| 9 |
| 6 |
| 7 |
| 2 |
| 9 |
x=
| 4 |
| 21 |
③x+
| 1 |
| 6 |
| 7 |
| 6 |
| 7 |
| 6 |
| 7 |
| 6 |
| 7 |
| 6 |
| 6 |
| 7 |
| 7 |
| 6 |
| 6 |
| 7 |
x=1.
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