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计算:(1)13+141−35×712=(2)0.5−18÷512615−434=(3)525−12338+512×710=(4)1−215÷317114+25=(5)(18−1637)×2.82.75+156=(6)1÷0.35(13+14)×137=

题目详情
计算:
(1)
1
3
+
1
4
1−
3
5
×
7
12
=
(2)
0.5−
1
8
÷
5
12
6
1
5
−4
3
4
=
(3)
5
2
5
−1
2
3
3
8
+
5
12
×
7
10
=
(4)
1−2
1
5
÷3
1
7
1
1
4
+
2
5
=
(5)
(18−16
3
7
)×2.8
2.75+1
5
6
=
(6)
1÷0.35
(
1
3
+
1
4
)×1
3
7
=
▼优质解答
答案和解析
(1)
1
3
+
1
4
1−
3
5
×
7
12

=
7
12
1−
7
20

=
7
12
13
20

=
7
12
×
20
13

=
35
39


(2)
0.5−
1
8
÷
5
12
6
1
5
−4
3
4

=
1
2
1
8
×
12
5
6
4
20
−4
15
20

=
1
2
3
10
29
20

=
(
1
2
3
10
)×20
29
20
×20

=
4
29


(3)
5
2
5
−1
2
3
3
8
+
5
12
×
7
10

=