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计算:-7+(+2)=,-5-5=,-20011017×0=,(-25)×(+1.2)=,(-125)×(-549)=1717,(-217)÷(-514)=,(-1)÷(+35)=-53-53,16÷(-2.5)=-115-115.

题目详情
计算:-7+(+2)=______,-5-5=______,-2001
10
17
×0=______,(-25)×(+1.2)=______,(-1
2
5
)×(-
5
49
)=
1
7
1
7
,(-2
1
7
)÷(-
5
14
)=______,(-1)÷(+
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
10
17
×0=______,(-25)×(+1.2)=______,(-1
2
5
)×(-
5
49
)=
1
7
1
7
,(-2
1
7
)÷(-
5
14
)=______,(-1)÷(+
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
10
17
10101717
2
5
)×(-
5
49
)=
1
7
1
7
,(-2
1
7
)÷(-
5
14
)=______,(-1)÷(+
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
2
5
2255
5
49
)=
1
7
1
7
,(-2
1
7
)÷(-
5
14
)=______,(-1)÷(+
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
5
49
554949
1
7
1
7
1
7
1177
1
7
1
7
1
7
1177
1
7
)÷(-
5
14
)=______,(-1)÷(+
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
1
7
1177
5
14
)=______,(-1)÷(+
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
5
14
551414
3
5
)=
-
5
3
-
5
3
1
6
÷(-2.5)=
-
1
15
-
1
15
3
5
3355
-
5
3
5
3
5
3
5533
-
5
3
5
3
5
3
5533
1
6
÷(-2.5)=
-
1
15
-
1
15
1
6
1166
-
1
15
1
15
1
15
111515
-
1
15
1
15
1
15
111515
▼优质解答
答案和解析
-7+(+2)=-7+2=-5;
-5-5=-10;
-2001
10
17
×0=0;
(-25)×(+1.2)=25×1.2=-30;
(-1
2
5
)×(-
5
49
)=
7
5
×(−
5
49
)=
1
7

(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
10
17
101010171717×0=0;
(-25)×(+1.2)=25×1.2=-30;
(-1
2
5
)×(-
5
49
)=
7
5
×(−
5
49
)=
1
7

(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
2
5
222555)×(-
5
49
)=
7
5
×(−
5
49
)=
1
7

(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
5
49
555494949)=
7
5
×(−
5
49
)=
1
7

(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
7
5
777555×(−
5
49
)=
1
7

(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
(−
5
49
555494949)=
1
7

(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
1
7
111777;
(-2
1
7
)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
1
7
111777)÷(-
5
14
)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
5
14
555141414)=
15
7
×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
15
7
151515777×(−
14
5
)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
(−
14
5
141414555)=6;
(-1)÷(+
3
5
)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
3
5
333555)=-1×
5
3
=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
5
3
555333=-
5
3

1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
5
3
555333;
1
6
÷(-2.5)=
1
6
×
2
5
=-
1
15
1
6
111666÷(-2.5)=
1
6
×
2
5
=-
1
15
1
6
111666×
2
5
222555=-
1
15
1
15
111151515.