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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)−
+
−
+
(3)[(-7)-(-10)]-(-8)
(4)−0.5+(−15
)−(−17.5)−|−12
|
(5)(−3)×(−
)×(−
)×
.
−
+
−
+
(3)[(-7)-(-10)]-(-8)
(4)−0.5+(−15
)−(−17.5)−|−12
|
(5)(−3)×(−
)×(−
)×
.
7 7 12 12
6 6 11 11
5 5 12 12
5 5 11 11
−0.5+(−15
)−(−17.5)−|−12
|
(5)(−3)×(−
)×(−
)×
.
1 1 3 3
2 2 3 3
(−3)×(−
)×(−
)×
.
7 7 5 5
1 1 3 3
4 4 7 7
(1)(-53)+(+21)-(-69)-(+37)
(2)−
7 |
12 |
6 |
11 |
5 |
12 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)
(4)−0.5+(−15
1 |
3 |
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 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
12 |
6 |
11 |
5 |
12 |
5 |
11 |
−0.5+(−15
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
1 |
3 |
2 |
3 |
(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
1 |
3 |
4 |
7 |
▼优质解答
答案和解析
(1)(-53)+(+21)-(-69)-(+37)=-53+21+69-37=0;
(2)−
+
−
+
=−
-
+
+
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
)−(−17.5)−|−12
|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
. −
7 7 712 12 12+
6 6 611 11 11−
5 5 512 12 12+
5 5 511 11 11=−
-
+
+
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
)−(−17.5)−|−12
|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
. −
7 7 712 12 12-
+
+
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
)−(−17.5)−|−12
|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
.
5 5 512 12 12+
+
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
)−(−17.5)−|−12
|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
.
6 6 611 11 11+
=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
)−(−17.5)−|−12
|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
. +
5 5 511 11 11=0;
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
)−(−17.5)−|−12
|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
. −0.5+(−15
1 1 13 3 3)−(−17.5)−|−12
2 2 23 3 3|=-0.5+17.5-15
-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
.
1 1 13 3 3-12
=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
.
2 2 23 3 3=17-28=-11;
(5)(−3)×(−
)×(−
)×
=-
×
=-
. (−3)×(−
7 7 75 5 5)×(−
1 1 13 3 3)×
4 4 47 7 7=-
×
=-
.
7 7 75 5 5×
=-
.
4 4 47 7 7=-
.
4 4 45 5 5.
(2)−
7 |
12 |
6 |
11 |
5 |
12 |
5 |
11 |
7 |
12 |
5 |
12 |
6 |
11 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
7 |
12 |
6 |
11 |
5 |
12 |
5 |
11 |
7 |
12 |
5 |
12 |
6 |
11 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
7 |
12 |
5 |
12 |
6 |
11 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
5 |
12 |
6 |
11 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
6 |
11 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
5 |
11 |
(3)[(-7)-(-10)]-(-8)=3-(-8)=11;
(4)−0.5+(−15
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
1 |
3 |
2 |
3 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
1 |
3 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
2 |
3 |
(5)(−3)×(−
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
7 |
5 |
1 |
3 |
4 |
7 |
7 |
5 |
4 |
7 |
4 |
5 |
7 |
5 |
4 |
7 |
4 |
5 |
4 |
7 |
4 |
5 |
4 |
5 |
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