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请你计算(要注意符号和检查)(1)(-53)+(+21)-(-69)-(+37)(2)−712+611−512+511(3)[(-7)-(-10)]-(-8)(4)−0.5+(−1513)−(−17.5)−|−1223|(5)(−3)×(−75)×(−13)×47.

题目详情
请你计算(要注意符号和检查)
(1)(-53)+(+21)-(-69)-(+37)
(2)
7
12
+
6
11
5
12
+
5
11

(3)[(-7)-(-10)]-(-8)
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|
(5)(−3)×(−
7
5
)×(−
1
3
4
7


7
12
+
6
11
5
12
+
5
11

(3)[(-7)-(-10)]-(-8)
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|
(5)(−3)×(−
7
5
)×(−
1
3
4
7
7
12
771212
6
11
661111
5
12
551212
5
11
551111

−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|
(5)(−3)×(−
7
5
)×(−
1
3
4
7
1
3
1133
2
3
2233
(−3)×(−
7
5
)×(−
1
3
4
7
7
5
7755
1
3
1133
4
7
4477
▼优质解答
答案和解析
(1)(-53)+(+21)-(-69)-(+37)=-53+21+69-37=0;
(2)
7
12
+
6
11
5
12
+
5
11
=
7
12
-
5
12
+
6
11
+
5
11
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
7
12
777121212+
6
11
666111111−
5
12
555121212+
5
11
555111111=
7
12
-
5
12
+
6
11
+
5
11
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
7
12
777121212-
5
12
+
6
11
+
5
11
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
5
12
555121212+
6
11
+
5
11
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
6
11
666111111+
5
11
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
+
5
11
555111111=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1
3
)−(−17.5)−|−12
2
3
|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
−0.5+(−15
1
3
111333)−(−17.5)−|−12
2
3
222333|=-0.5+17.5-15
1
3
-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
1
3
111333-12
2
3
=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
2
3
222333=17-28=-11;
(5)(−3)×(−
7
5
)×(−
1
3
4
7
=-
7
5
×
4
7
=-
4
5
(−3)×(−
7
5
777555)×(−
1
3
111333)×
4
7
444777=-
7
5
×
4
7
=-
4
5
7
5
777555×
4
7
=-
4
5
4
7
444777=-
4
5
4
5
444555.