题目内容
计算:
(1)
+1+
(
-
)+
;
(2)(2
-3
)÷
.
(1)
| 2 |
| 3 |
| 3 |
| 6 |
| 8 |
(2)(2
| 48 |
| 27 |
| 6 |
(1)
+1+
(
-
)+
=
+1+3-3
+2
=4;
(2)(2
-3
)÷
=(8
-9
)÷
=-
÷
=-
.
| 2 |
| 3 |
| 3 |
| 6 |
| 8 |
=
| 2 |
| 2 |
| 2 |
=4;
(2)(2
| 48 |
| 27 |
| 6 |
=(8
| 3 |
| 3 |
| 6 |
=-
| 3 |
| 6 |
=-
| ||
| 2 |
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