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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