题目内容
[(6.6-3
)×1
-3
]÷
.
| 2 |
| 3 |
| 9 |
| 11 |
| 1 |
| 3 |
| 1 |
| 2 |
[(6.6-3
)×1
-3
]÷
,
=[
×
-
×
-
]×2,
=[12-
-
]×2,
=[12-10]×2,
=4.
| 2 |
| 3 |
| 9 |
| 11 |
| 1 |
| 3 |
| 1 |
| 2 |
=[
| 66 |
| 10 |
| 20 |
| 11 |
| 11 |
| 3 |
| 20 |
| 11 |
| 10 |
| 3 |
=[12-
| 20 |
| 3 |
| 10 |
| 3 |
=[12-10]×2,
=4.
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