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112+213+314+415+516+617+718.
题目详情
1
+2
+3
+4
+5
+6
+7
.1
+2
+3
+4
+5
+6
+7
.
1 1 2 2
1 1 3 3
1 1 4 4
1 1 5 5
1 1 6 6
1 1 7 7
1 1 8 8
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2 |
1 |
3 |
1 |
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1 |
5 |
1 |
6 |
1 |
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1 |
8 |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
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1 |
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1 |
8 |
▼优质解答
答案和解析
1
+2
+3
+4
+5
+6
+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 12 2 2+2
+3
+4
+5
+6
+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 13 3 3+3
+4
+5
+6
+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
+
-
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,
=29+
,
=29
.
1 1 14 4 4+4
+5
+6
+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
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)+
,
=29+
,
=29
.
1 1 15 5 5+5
+6
+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
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)+
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=29+
,
=29
.
1 1 16 6 6+6
+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 17 7 7+7
,
=(1+2+3+4+5+6+7)+(
+
+
+
+
+
+
),
=28+(
+
+
)+(
+
+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 18 8 8,
=(1+2+3+4+5+6+7)+(
+
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+
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),
=28+(
+
+
)+(
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+
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),
=28+(
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=29+
,
=29
.
1 1 12 2 2+
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=28+(
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=28+(
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=29+
,
=29
.
1 1 13 3 3+
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=28+(
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=28+(
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=29+
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=29
.
1 1 14 4 4+
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=28+(
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=28+(
+
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)+
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=29+
,
=29
.
1 1 15 5 5+
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=28+(
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+
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=28+(
+
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=29+
,
=29
.
1 1 16 6 6+
+
),
=28+(
+
+
)+(
+
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+
),
=28+(
+
+
-
)+
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=29+
,
=29
.
1 1 17 7 7+
),
=28+(
+
+
)+(
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+
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),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 18 8 8),
=28+(
+
+
)+(
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),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 12 2 2+
+
)+(
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+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 13 3 3+
)+(
+
+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 16 6 6)+(
+
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+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 14 4 4+
+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 15 5 5+
+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 17 7 7+
),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 18 8 8),
=28+(
+
+
-
)+
,
=29+
,
=29
.
1 1 12 2 2+
+
-
)+
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=29+
,
=29
.
1 1 13 3 3+
-
)+
,
=29+
,
=29
.
1 1 12 2 2-
)+
,
=29+
,
=29
.
1 1 13 3 3)+
,
=29+
,
=29
.
201 201 201280 280 280,
=29+
,
=29
.
201 201 201280 280 280,
=29
.
201 201 201280 280 280.
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
6 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
7 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
8 |
=(1+2+3+4+5+6+7)+(
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
5 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
6 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
2 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
3 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
6 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
4 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
5 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
7 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
8 |
=28+(
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
2 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
3 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
2 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
1 |
3 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
201 |
280 |
=29+
201 |
280 |
=29
201 |
280 |
201 |
280 |
=29
201 |
280 |
201 |
280 |
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