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计算:13×35+157-59×571-57×212512+54×4516×(5-23)78×7+38.

题目详情
计算:
1
3
×
3
5
+1
5
7
-
5
9
×
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
计算:
1
3
×
3
5
+1
5
7
-
5
9
×
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8

1
3
×
3
5
+1
5
7
-
5
9
×
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
1
3
131133
3
5
+1
5
7
-
5
9
×
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
3
5
353355
5
7
-
5
9
×
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
5
7
575577
5
9
×
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
5
9
595599
5
7

1-
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
5
7
575577
5
7
×
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
5
7
575577
21
25

1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
21
25
212521212525
1
2
+
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
1
2
121122
5
4
×
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
5
4
545544
4
5

1
6
×(5-
2
3

7
8
×7+
3
8
4
5
454455
1
6
×(5-
2
3

7
8
×7+
3
8
1
6
161166
2
3

7
8
×7+
3
8
2
3
232233
7
8
×7+
3
8
7
8
787788
3
8
3
8
383388
▼优质解答
答案和解析
(1)
1
3
×
3
5
+1
=
1
5
+1
=1
1
5


(2)
5
7
-
5
9
×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
3
13111333×
3
5
+1
=
1
5
+1
=1
1
5


(2)
5
7
-
5
9
×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
3
5
35333555+1
=
1
5
+1
=1
1
5


(2)
5
7
-
5
9
×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
5
15111555+1
=1
1
5


(2)
5
7
-
5
9
×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
1
5
15111555

(2)
5
7
-
5
9
×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
7
57555777-
5
9
×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
9
59555999×
5
7

=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
7
57555777
=
5
7
×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
7
57555777×(1-
5
9

=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
9
59555999)
=
5
7
×
4
9

=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
7
57555777×
4
9
49444999
=
20
63


(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
20
63
2063202020636363

(3)1-
5
7
×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
7
57555777×
21
25

=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
21
25
2125212121252525
=1-
3
5

=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
3
5
35333555
=
2
5


(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
2
5
25222555

(4)
1
2
+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
2
12111222+
5
4
×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
5
4
54555444×
4
5

=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
4
5
45444555
=
1
2
+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
2
12111222+1
=1
1
2


(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
1
2
12111222

(5)
1
6
×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
6
16111666×(5-
2
3

=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
2
3
23222333)
=
1
6
×
13
3

=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
1
6
16111666×
13
3
133131313333
=1
4
9


(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
4
9
49444999

(6)
7
8
×7+
3
8

=
49
8
+
3
8

=6
1
2
7
8
78777888×7+
3
8

=
49
8
+
3
8

=6
1
2
3
8
38333888
=
49
8
+
3
8

=6
1
2
49
8
498494949888+
3
8
38333888
=6
1
2
1
2
12111222