题目内容
计算:(1)3
-9
+3
(2)
÷(3
×
)
| 48 |
|
| 12 |
(2)
| 72 |
|
| 12 |
(1)原式=12
-3
+6
=(12-3-+6)
=15
;
(2)原式=6
÷(
×2
)
=6
÷6
=
.
| 3 |
| 3 |
| 3 |
=(12-3-+6)
| 3 |
=15
| 3 |
(2)原式=6
| 2 |
| 3 |
| 2 |
| 2 |
| 2 |
=6
| 2 |
=
| 2 |
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题目内容
| 48 |
|
| 12 |
| 72 |
|
| 12 |
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |