题目内容

计算下面各题,能简算的要简算.
8
13
÷7+
1
7
×
6
13
11
13
÷[(
5
8
+
3
4
)÷
5
8
]
101×
99
102
23×
14
39
+14×
16
39
(1)
8
13
÷7+
1
7
×
6
13

=
8
13
×
1
7
+
1
7
×
6
13

=(
8
13
+
6
13
)×
1
7

=
14
13
×
1
7

=
2
13


(2)
11
13
÷[(
5
8
+
3
4
)÷
5
8
],
=
11
13
÷[
11
8
÷
5
8
],
=
11
13
÷
11
5

=
5
13


(3)101×
99
102

=(102-1)×
99
102

=102×
99
102
-1×
99
102

=99-
99
102

=98
1
34


(4)23×
14
39
+14×
16
39

=23×
14
39
+16×
14
39

=(23+16)×
14
39

=39×
14
39

=14.
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