题目内容
计算
(1)4
-
+
(2)(2
-3
)×
.
(1)4
| 3 |
| 12 |
| 18 |
(2)(2
| 12 |
|
| 6 |
(1)原式=4
-2
+3
=2
+3
;
(2)原式=2
-3
=12
-3
=9
.
| 3 |
| 3 |
| 2 |
=2
| 3 |
| 2 |
(2)原式=2
| 12×6 |
|
=12
| 2 |
| 2 |
=9
| 2 |
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题目内容
| 3 |
| 12 |
| 18 |
| 12 |
|
| 6 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
| 12×6 |
|
| 2 |
| 2 |
| 2 |