题目内容

下面各题怎样算简便就怎样算.
18
35
÷0.6×
2
3

5
17
÷9+
1
9
×
12
17

2-
6
13
÷
9
26
-
2
3
(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)2-
6
13
÷
9
26
-
2
3

=2-
4
3
-
2
3

=2-(
4
3
+
2
3
),
=2-2,
=0.
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