题目内容
解方程.
0+
=
0+
0=89
0-
0=1
0÷
=
×
.
| 1 |
| 2 |
| 1 |
| 2 |
| 8 |
| k |
0+
| 5 |
| 8 |
| 2 |
| 8 |
| 1 |
| 5 |
0÷
| 8 |
| 5 |
| 5 |
| 12 |
| 8 |
| 15 |
(2)
x+
=
x+
-
=
-
x=
x÷
=
÷
x=
;
(2)x+
x=四9
x=四9
x÷
=四9÷
x=20;
(四)
x-
x=2
x=2
x÷
=2÷
x=
;
(0)x÷
=
×
x÷
×
=
×
×
x=
.
| 2 |
| 2 |
| 2 |
| 2 |
| 四 |
| 0 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
| 四 |
| 0 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
| 0 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |
| 0 |
| 2 |
| 2 |
x=
| 2 |
| 2 |
(2)x+
| 四 |
| 8 |
| 2四 |
| 8 |
| 2四 |
| 8 |
| 2四 |
| 8 |
| 2四 |
| 8 |
x=20;
(四)
| 2 |
| 四 |
| 2 |
| 四 |
| 7 |
| 2四 |
| 7 |
| 2四 |
| 7 |
| 2四 |
| 7 |
| 2四 |
x=
| 2四 |
| 7 |
(0)x÷
| 四 |
| 四 |
| 四 |
| 22 |
| 8 |
| 2四 |
x÷
| 四 |
| 四 |
| 四 |
| 四 |
| 四 |
| 22 |
| 8 |
| 2四 |
| 四 |
| 四 |
x=
| 2 |
| 2四 |
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