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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)×(-
1
3

(3)-36×(
1
4
-
1
9
-
1
12
);          
(4)(-92)÷2
1
4
+
4
9
÷(-3)2
(5)-24-(1+0.5)÷(-3)×
1
3
    
(6)(-1)3-(1-
1
2
)÷3×[2-(-3)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)×(-
1
3

=18-1
=17;
(3)-36×(
1
4
-
1
9
-
1
12

=-36×
1
4
+36×
1
9
+36×
1
12

=-9+4+3
=-2;          
(4)(-92)÷2
1
4
+
4
9
÷(-3)2
=-81÷2
1
4
+
4
9
÷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
)÷3×[2-(-3)2]
=-1-
1
2
÷3×[2-9]
=-1-
1
2
÷3×(-7)
=-1+
7
6

=
1
6