题目内容
（1）(2
|
（2）[1
| ||||||||||||||||||
（3）2-
|
（4）[2
|
（1）(2
-1
)÷[(3
+4.375)÷19
]
=
÷[（3
+4
）÷19
]，
=
÷[
÷
]，
=
÷
，
=
．
（2）1
×（4
-2.625）-4
，
=
×（4
-2
）-4
=
×
-4
=1
-4
，
=-2
．
（3）2-
÷
-
+
÷0.6×
=2-
-
+
×
×
，
=0+
，
=
；
（4）[2
+(5.4-2
)×1
]÷6
=[2
+（5
-2
）×1
]÷6
，
=[2
+
×
]÷
，
=[2
+
]×
，
=
×
，
=1．
| 5 |
| 8 |
| 4 |
| 7 |
| 1 |
| 12 |
| 8 |
| 9 |
=
| 59 |
| 56 |
| 1 |
| 12 |
| 3 |
| 8 |
| 8 |
| 9 |
=
| 59 |
| 56 |
| 179 |
| 24 |
| 179 |
| 9 |
=
| 59 |
| 56 |
| 3 |
| 8 |
=
| 59 |
| 21 |
（2）1
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 2 |
=
| 4 |
| 3 |
| 1 |
| 12 |
| 5 |
| 8 |
| 1 |
| 2 |
=
| 4 |
| 3 |
| 35 |
| 24 |
| 1 |
| 2 |
=1
| 17 |
| 18 |
| 1 |
| 2 |
=-2
| 5 |
| 9 |
（3）2-
| 6 |
| 13 |
| 9 |
| 26 |
| 2 |
| 3 |
| 18 |
| 35 |
| 2 |
| 3 |
=2-
| 4 |
| 3 |
| 2 |
| 3 |
| 18 |
| 35 |
| 5 |
| 3 |
| 2 |
| 3 |
=0+
| 4 |
| 7 |
=
| 4 |
| 7 |
（4）[2
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 8 |
| 9 |
=[2
| 1 |
| 3 |
| 2 |
| 5 |
| 2 |
| 3 |
| 2 |
| 3 |
| 8 |
| 9 |
=[2
| 1 |
| 3 |
| 41 |
| 15 |
| 5 |
| 3 |
| 62 |
| 9 |
=[2
| 1 |
| 3 |
| 41 |
| 9 |
| 9 |
| 62 |
=
| 62 |
| 9 |
| 9 |
| 62 |
=1．
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