题目内容

计算,能简算的要简算.
18
35
÷0.6×
2
3
5
17
÷9+
1
9
×
12
17
4
5
÷[(
1
3
+0.4)×
4
11
].

(1)
18
35
÷0.6×
2
3

=
6
7
×
2
3

=
4
7


(2)
5
17
÷9+
1
9
×
12
17

=
5
17
×
1
9
+
1
9
×
12
17

=(
5
17
+
12
17
)×
1
9

=1×
1
9

=
1
9


(3)
4
5
÷[(
1
3
+0.4)×
4
11
],
=
4
5
÷[
11
15
×
4
11
],
=
4
5
÷
4
15

=3.
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