问题 解答题
10
13
÷2
19
22
-1
2
5
×
11
13
÷7+
1
5
×
22
63
=______.
答案

10
13
÷2
19
22
-1
2
5
×
11
13
÷7+
1
5
×
22
63

=

10
13
÷
63
22
-
7
5
×
11
13
÷7+
1
5
×
22
63

=

10
13
×
22
63
-
7
5
÷ 7×
11
13
+
1
5
×
22
63

=(

10
13
+
1
5
)×
22
63
-
1
5
×
11
13

=

63
65
×
22
63
-
11
65

=

22
65
-
11
65

=

11
65

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