题目内容
求值:[13.5÷(11+
)-1÷7]×1
=______.
2
| ||
1-
|
| 1 |
| 6 |
[13.5÷(11+
)-1÷7]×1
,
=[13.5÷(11+
)-
]×
,
=[13.5÷(11+
×
)-
]×
,
=[13.5÷(11+
)-
]×
,
=[13.5÷
-
]×
,
=[13.5×
-
]×
,
=[1-
]×
,
=
×
,
=1.
2
| ||
1-
|
| 1 |
| 6 |
=[13.5÷(11+
| ||
|
| 1 |
| 7 |
| 7 |
| 6 |
=[13.5÷(11+
| 9 |
| 4 |
| 10 |
| 9 |
| 1 |
| 7 |
| 7 |
| 6 |
=[13.5÷(11+
| 5 |
| 2 |
| 1 |
| 7 |
| 7 |
| 6 |
=[13.5÷
| 27 |
| 2 |
| 1 |
| 7 |
| 7 |
| 6 |
=[13.5×
| 2 |
| 27 |
| 1 |
| 7 |
| 7 |
| 6 |
=[1-
| 1 |
| 7 |
| 7 |
| 6 |
=
| 6 |
| 7 |
| 7 |
| 6 |
=1.
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