计算下列各题,能简算的要简算. 1 12 +[( 1 6 + 1 12 )+ 1 3 ] 28× 26 27 9 14

计算下列各题,能简算的要简算.
1
12
+[(
1
6
+
1
12
)+
1
3
]
28×
26
27
9
14
-(
2
7
+
3
14
85×
3
86
236÷
5
9
+236÷
5
41
5
9
×
8
15
÷
4
9
45÷(1-
2
5
)÷(1-
3
8
SUMS刘 1年前 已收到1个回答 举报

lyjcooyee 幼苗

共回答了16个问题采纳率:75% 举报

(1)
1
12 +[(
1
6 +
1
12 )+
1
3 ],
=
1
12 +[(
2
12 +
1
12 )+
1
3 ],
=
1
12 +[(
2
12 +
1
12 )+
4
12 ],
=
1
12 +
7
12 ,
=
2
3 ;

(2)28×
26
27 ,
=(27+1)×
26
27 ,
=27×
26
27 +
26
27 ,
=26+
26
27 ,
=26
26
27 ;

(3)
9
14 -(
2
7 +
3
14 ),
=
9
14 -
2
7 -
3
14 ,
=
9
14 -
4
14 -
3
14 ,
=
1
7 ;

(4)85×
3
86 ,
=(86-1)×
3
86 ,
=86×
3
86 -
3
86 ,
=3-
3
86 ,
=2
83
86 ;

(5)236÷
5
9 +236÷
5
41 ,
=236×
9
5 +236×
41
5 ,
=236×(
9
5 +
41
5 ),
=236×10,
=2360;

(6)
5
9 ×
8
15 ÷
4
9 ,
=
5
9 ×
8
15 ×
9
4 ,
=
2
3 ;

(7)45÷(1-
2
5 )÷(1-
3
8 ),
=45÷
3
5 ÷
5
8 ,
=45×
5
3 ×
8
5 ,
=120.

1年前

6
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