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计算下列各题:(1)(-5)+(-2)+(+9)-(-8);(2)-15+(+3)-(-15)+(+7)-(+2)+(-8);(3)0.85+(+0.75)−(+234)+(−1.85)+(+3);(4)2−[(−523)−(−13)];(5)1−(−12)+(−13)−34;(6)|511
题目详情
计算下列各题:
(1)(-5)+(-2)+(+9)-(-8);
(2)-15+(+3)-(-15)+(+7)-(+2)+(-8);
(3)0.85+(+0.75)−(+2
)+(−1.85)+(+3);
(4)2−[(−5
)−(−
)];
(5)1−(−
)+(−
)−
;
(6)|5
−3
|+4
−
.
0.85+(+0.75)−(+2
)+(−1.85)+(+3);
(4)2−[(−5
)−(−
)];
(5)1−(−
)+(−
)−
;
(6)|5
−3
|+4
−
.
3 3 4 4
2−[(−5
)−(−
)];
(5)1−(−
)+(−
)−
;
(6)|5
−3
|+4
−
.
2 2 3 3
1 1 3 3
1−(−
)+(−
)−
;
(6)|5
−3
|+4
−
.
1 1 2 2
1 1 3 3
3 3 4 4
|5
−3
|+4
−
.
1 1 11 11
4 4 17 17
4 4 17 17
1 1 11 11
(1)(-5)+(-2)+(+9)-(-8);
(2)-15+(+3)-(-15)+(+7)-(+2)+(-8);
(3)0.85+(+0.75)−(+2
3 |
4 |
(4)2−[(−5
2 |
3 |
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
0.85+(+0.75)−(+2
3 |
4 |
(4)2−[(−5
2 |
3 |
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
3 |
4 |
2−[(−5
2 |
3 |
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
2 |
3 |
1 |
3 |
1−(−
1 |
2 |
1 |
3 |
3 |
4 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
1 |
2 |
1 |
3 |
3 |
4 |
|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
▼优质解答
答案和解析
(1)(-5)+(-2)+(+9)-(-8)
=-5-2+9+8
=-7+17
=10;
(2)-15+(+3)-(-15)+(+7)-(+2)+(-8)
=-15+3+15+7-2-8
=-15+15+3+7-2-8
=0+10-10
=0;
(3)0.85+(+0.75)−(+2
)+(−1.85)+(+3)
=0.85+0.75-2
-1.85+3
=0.85+0.75-2.75-1.85+3
=0.85-1.85+0.75-2.75+3
=-1-2+3
=0;
(4)2−[(−5
)−(−
)]
=2-(-5
+
)
=2+5
-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6. 0.85+(+0.75)−(+2
3 3 34 4 4)+(−1.85)+(+3)
=0.85+0.75-2
-1.85+3
=0.85+0.75-2.75-1.85+3
=0.85-1.85+0.75-2.75+3
=-1-2+3
=0;
(4)2−[(−5
)−(−
)]
=2-(-5
+
)
=2+5
-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
3 3 34 4 4-1.85+3
=0.85+0.75-2.75-1.85+3
=0.85-1.85+0.75-2.75+3
=-1-2+3
=0;
(4)2−[(−5
)−(−
)]
=2-(-5
+
)
=2+5
-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6. 2−[(−5
2 2 23 3 3)−(−
1 1 13 3 3)]
=2-(-5
+
)
=2+5
-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
2 2 23 3 3+
)
=2+5
-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 13 3 3)
=2+5
-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
2 2 23 3 3-
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 13 3 3
=7
-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
2 2 23 3 3-
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 13 3 3
=7
;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 13 3 3;
(5)1−(−
)+(−
)−
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6. 1−(−
1 1 12 2 2)+(−
1 1 13 3 3)−
3 3 34 4 4
=1+
-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 12 2 2-
-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 13 3 3-
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
3 3 34 4 4
=1+
-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
6 6 612 12 12-
-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
4 4 412 12 12-
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
9 9 912 12 12
=1-
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
7 7 712 12 12
=
;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
5 5 512 12 12;
(6)|5
−3
|+4
−
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6. |5
1 1 111 11 11−3
4 4 417 17 17|+4
4 4 417 17 17−
1 1 111 11 11
=5
-3
+4
-
=5
-
+4
-3
=5+1
=6.
1 1 111 11 11-3
+4
-
=5
-
+4
-3
=5+1
=6.
4 4 417 17 17+4
-
=5
-
+4
-3
=5+1
=6.
4 4 417 17 17-
=5
-
+4
-3
=5+1
=6.
1 1 111 11 11
=5
-
+4
-3
=5+1
=6.
1 1 111 11 11-
+4
-3
=5+1
=6.
1 1 111 11 11+4
-3
=5+1
=6.
4 4 417 17 17-3
=5+1
=6.
4 4 417 17 17
=5+1
=6.
=-5-2+9+8
=-7+17
=10;
(2)-15+(+3)-(-15)+(+7)-(+2)+(-8)
=-15+3+15+7-2-8
=-15+15+3+7-2-8
=0+10-10
=0;
(3)0.85+(+0.75)−(+2
3 |
4 |
=0.85+0.75-2
3 |
4 |
=0.85+0.75-2.75-1.85+3
=0.85-1.85+0.75-2.75+3
=-1-2+3
=0;
(4)2−[(−5
2 |
3 |
1 |
3 |
=2-(-5
2 |
3 |
1 |
3 |
=2+5
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6. 0.85+(+0.75)−(+2
3 |
4 |
=0.85+0.75-2
3 |
4 |
=0.85+0.75-2.75-1.85+3
=0.85-1.85+0.75-2.75+3
=-1-2+3
=0;
(4)2−[(−5
2 |
3 |
1 |
3 |
=2-(-5
2 |
3 |
1 |
3 |
=2+5
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
3 |
4 |
=0.85+0.75-2.75-1.85+3
=0.85-1.85+0.75-2.75+3
=-1-2+3
=0;
(4)2−[(−5
2 |
3 |
1 |
3 |
=2-(-5
2 |
3 |
1 |
3 |
=2+5
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6. 2−[(−5
2 |
3 |
1 |
3 |
=2-(-5
2 |
3 |
1 |
3 |
=2+5
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
2 |
3 |
1 |
3 |
=2+5
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
3 |
=2+5
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
2 |
3 |
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
3 |
=7
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
2 |
3 |
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
3 |
=7
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
3 |
(5)1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6. 1−(−
1 |
2 |
1 |
3 |
3 |
4 |
=1+
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
2 |
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
3 |
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
3 |
4 |
=1+
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
6 |
12 |
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
4 |
12 |
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
9 |
12 |
=1-
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
7 |
12 |
=
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
5 |
12 |
(6)|5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6. |5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
11 |
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
4 |
17 |
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
4 |
17 |
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
11 |
=5
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
11 |
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
1 |
11 |
4 |
17 |
4 |
17 |
=5+1
=6.
4 |
17 |
4 |
17 |
=5+1
=6.
4 |
17 |
=5+1
=6.
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