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脱式计算217+98×59+38(9.3×56-7.3)÷94150+(2-0.47)×32089×[1516+(716-14)÷12].

题目详情
脱式计算
2
1
7
+
9
8
×
5
9
+
3
8
                         
(9.3×
5
6
-7.3)÷
9
4

1
50
+(2-0.47 )×
3
20
                          
8
9
×[
15
16
+(
7
16
-
1
4
)÷
1
2
].
▼优质解答
答案和解析
(1)2
1
7
+
9
8
×
5
9
+
3
8

=2
1
7
+
5
8
+
3
8

=3
1
7
;               
         
(2)(9.3×
5
6
-7.3)÷
9
4

=(7.75-7.3)×
4
9

=0.45×
4
9

=0.2;

(3)
1
50
+(2-0.47 )×
3
20
 
=
1
50
+1.53×
3
20
 
=
1
50
+0.2295
=0.2495;    
                    
(4)
8
9
×[
15
16
+(
7
16
-
1
4
)÷
1
2
]
=
8
9
×
21
16

=
7
6