题目内容
(1)
+(
-
)
(2)
×
÷
.
| 29 |
| 43 |
| 22 |
| 43 |
| 8 |
| 43 |
(2)
| 2 |
| 3 |
| 7 |
| 12 |
| 7 |
| 8 |
(1)
+(
-
),
=
+
,
=1;
(2)
×
÷
,
=
×
×
,
=
×
,
=
.
| 29 |
| 43 |
| 22 |
| 43 |
| 8 |
| 43 |
=
| 29 |
| 43 |
| 14 |
| 43 |
=1;
(2)
| 2 |
| 3 |
| 7 |
| 12 |
| 7 |
| 8 |
=
| 2 |
| 3 |
| 7 |
| 12 |
| 8 |
| 7 |
=
| 7 |
| 18 |
| 8 |
| 7 |
=
| 4 |
| 9 |
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