早教吧作业答案频道 -->其他-->
(1)(-23)+72+(-31)+(+47);(2)(-1.6)+(-315)+|-1.8|;(3)1-4-2-|-5|;(4)(-215)+(-113)-(-216)-(-415);(5)(-534+14-318-(-534).
题目详情
(1)(-23)+72+(-31)+(+47);
(2)(-1.6)+(-3
)+|-1.8|;
(3)1-4-2-|-5|;
(4)(-2
)+(-1
)-(-2
)-(-4
);
(5)(-5
+
-3
-(-5
).
)+|-1.8|;
(3)1-4-2-|-5|;
(4)(-2
)+(-1
)-(-2
)-(-4
);
(5)(-5
+
-3
-(-5
).
1 1 5 5
)+(-1
)-(-2
)-(-4
);
(5)(-5
+
-3
-(-5
).
1 1 5 5
)-(-2
)-(-4
);
(5)(-5
+
-3
-(-5
).
1 1 3 3
)-(-4
);
(5)(-5
+
-3
-(-5
).
1 1 6 6
);
(5)(-5
+
-3
-(-5
).
1 1 5 5
+
-3
-(-5
).
3 3 4 4
-3
-(-5
).
1 1 4 4
-(-5
).
1 1 8 8
).
3 3 4 4
(2)(-1.6)+(-3
1 |
5 |
(3)1-4-2-|-5|;
(4)(-2
1 |
5 |
1 |
3 |
1 |
6 |
1 |
5 |
(5)(-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
1 |
5 |
(3)1-4-2-|-5|;
(4)(-2
1 |
5 |
1 |
3 |
1 |
6 |
1 |
5 |
(5)(-5
3 |
4 |
1 |
4 |
1 |
8 |
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(5)(-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
1 |
5 |
1 |
3 |
1 |
6 |
1 |
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(5)(-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
1 |
3 |
1 |
6 |
1 |
5 |
(5)(-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
1 |
6 |
1 |
5 |
(5)(-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
1 |
5 |
3 |
4 |
1 |
4 |
1 |
8 |
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4 |
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4 |
1 |
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4 |
▼优质解答
答案和解析
(1)原式=-23-31+72+47=-54+119=65;
(2)原式=-1.6-3.2+1.8=-3;
(3)原式=1-4-2-5=-10;
(4)原式=-2
+4
-1
+2
=2
;
(5)原式=-5
+
-3
+5
=-2
.
1 1 15 5 5+4
-1
+2
=2
;
(5)原式=-5
+
-3
+5
=-2
.
1 1 15 5 5-1
+2
=2
;
(5)原式=-5
+
-3
+5
=-2
.
1 1 13 3 3+2
=2
;
(5)原式=-5
+
-3
+5
=-2
.
1 1 16 6 6=2
;
(5)原式=-5
+
-3
+5
=-2
.
5 5 56 6 6;
(5)原式=-5
+
-3
+5
=-2
.
3 3 34 4 4+
-3
+5
=-2
.
1 1 14 4 4-3
+5
=-2
.
1 1 18 8 8+5
=-2
.
3 3 34 4 4=-2
.
7 7 78 8 8.
(2)原式=-1.6-3.2+1.8=-3;
(3)原式=1-4-2-5=-10;
(4)原式=-2
1 |
5 |
1 |
5 |
1 |
3 |
1 |
6 |
5 |
6 |
(5)原式=-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
1 |
5 |
1 |
5 |
1 |
3 |
1 |
6 |
5 |
6 |
(5)原式=-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
1 |
5 |
1 |
3 |
1 |
6 |
5 |
6 |
(5)原式=-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
1 |
3 |
1 |
6 |
5 |
6 |
(5)原式=-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
1 |
6 |
5 |
6 |
(5)原式=-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
5 |
6 |
(5)原式=-5
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
3 |
4 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
1 |
4 |
1 |
8 |
3 |
4 |
7 |
8 |
1 |
8 |
3 |
4 |
7 |
8 |
3 |
4 |
7 |
8 |
7 |
8 |
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