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列递等式计算.(1)78−35+18−25=(2)56÷710×57=(3)(1112−16)÷118×13=(4)14×1439−1439÷14=(5)119÷[3225−(32.4−13×0.25)]×12=(6)2012−614×252+123÷416=.

题目详情
列递等式计算.
(1)
7
8
3
5
+
1
8
2
5
=
(2)56÷
7
10
×
5
7
=
(3)(
11
12
1
6
1
18
×
1
3
=
(4)14×
14
39
14
39
÷14=
(5)1
1
9
÷[32
2
5
−(32.4−
1
3
×0.25)]×12=
(6)
20
1
2
−6
1
4
×
2
5
2+1
2
3
÷4
1
6
=.
▼优质解答
答案和解析
(1)
7
8
3
5
+
1
8
2
5

=
7
8
+
1
8
-(
3
5
+
2
5

=1-1
=0;

(2)56÷
7
10
×
5
7

=56×
10
7
×
5
7

=
400
7


(3)(
11
12
1
6
1
18
×
1
3

=
3
4
×18×
1
3

=
9
2


(4)14×
14
39
14
39
÷14
=14×
14
39
-
14
39
×
1
14

=
14
39
×(14-
1
14

=
14
39
×
195
14

=5;

(5)1
1
9
÷[32
2
5
−(32.4−
1
3
×0.25)]×12
=1
1
9
÷[32
2
5
-(32.4-
1
12
)]×12
=1
1
9
÷[32
2
5
-32.4+
1
12
]×12
=
10
9
×12×12
=160;

(6)
20
1
2
−6
1
4
×
2
5
2+1
2
3
÷4
1
6

=(20
1
2
-6
1
4
×
2
5
)÷(2+1
2
3
÷4
1
6

=(20
1
2
-
25
4
×
2
5
)÷(2+
5
3
×
6
25

=(20
1
2
-2
1
2
)÷(2+
2
5

=18×
5
12

=
15
2