题目内容
计算:
(1)2
×3
×
.
(2)
-
+
.
(1)2
| 48 |
| 18 |
|
(2)
| 27 |
| 12 |
| 45 |
(1)原式=8
×9
×
=72
;
(2)原式=3
-2
+3
=
+3
.
| 3 |
| 2 |
| ||
| 2 |
=72
| 3 |
(2)原式=3
| 3 |
| 3 |
| 5 |
=
| 3 |
| 5 |
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题目内容
| 48 |
| 18 |
|
| 27 |
| 12 |
| 45 |
| 3 |
| 2 |
| ||
| 2 |
| 3 |
| 3 |
| 3 |
| 5 |
| 3 |
| 5 |