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计算下列各题(1)(-5.3)+(-3.2)-(-2.5)-(+4.8)(2)18-6÷(-2)×(-13)(3)-36×(14-19-112);(4)(-92)÷214+49÷(-3)2(5)-24-(1+0.5)÷(-3)×13(6)(-1)3-(1
题目详情
计算下列各题
(1)(-5.3)+(-3.2)-(-2.5)-(+4.8)
(2)18-6÷(-2)×(-
)
(3)-36×(
-
-
);
(4)(-92)÷2
+
÷(-3)2
(5)-24-(1+0.5)÷(-3)×
(6)(-1)3-(1-
)÷3×[2-(-3)2].
(1)(-5.3)+(-3.2)-(-2.5)-(+4.8)
(2)18-6÷(-2)×(-
1 |
3 |
(3)-36×(
1 |
4 |
1 |
9 |
1 |
12 |
(4)(-92)÷2
1 |
4 |
4 |
9 |
(5)-24-(1+0.5)÷(-3)×
1 |
3 |
(6)(-1)3-(1-
1 |
2 |
▼优质解答
答案和解析
(1)(-5.3)+(-3.2)-(-2.5)-(+4.8)
=-5.3-3.2+2.5-4.8
=-13.3+2.5
=-10.8;
(2)18-6÷(-2)×(-
)
=18-1
=17;
(3)-36×(
-
-
)
=-36×
+36×
+36×
=-9+4+3
=-2;
(4)(-92)÷2
+
÷(-3)2
=-81÷2
+
÷9
=-18+
=-17
;
(5)-24-(1+0.5)÷(-3)×
=-16-1.5÷(-3)×
=-16+
=-15
;
(6)(-1)3-(1-
)÷3×[2-(-3)2]
=-1-
÷3×[2-9]
=-1-
÷3×(-7)
=-1+
=
.
=-5.3-3.2+2.5-4.8
=-13.3+2.5
=-10.8;
(2)18-6÷(-2)×(-
1 |
3 |
=18-1
=17;
(3)-36×(
1 |
4 |
1 |
9 |
1 |
12 |
=-36×
1 |
4 |
1 |
9 |
1 |
12 |
=-9+4+3
=-2;
(4)(-92)÷2
1 |
4 |
4 |
9 |
=-81÷2
1 |
4 |
4 |
9 |
=-18+
4 |
81 |
=-17
77 |
81 |
(5)-24-(1+0.5)÷(-3)×
1 |
3 |
=-16-1.5÷(-3)×
1 |
3 |
=-16+
1 |
6 |
=-15
5 |
6 |
(6)(-1)3-(1-
1 |
2 |
=-1-
1 |
2 |
=-1-
1 |
2 |
=-1+
7 |
6 |
=
1 |
6 |
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