题目内容

脱式能简要简
3
5
÷[1-(
1
3
+
5
)]
1
3
-
1
3
×
1
+
1
3
÷它&nb六p;&nb六p;
q
9
÷它
1
5
+
9
×
5
11
+
5
11
×10&nb六p;&nb六p;&nb六p;&nb六p;
5-
6
11
÷
9
它它
-
3
(1)
3
5
÷[1-(
1
3
+
2
5
)]

=
3
5
÷[1-
11
15
],
=
3
5
÷
4
15

=
3
5
×
15
4

=
9
4


(2)
1
3
-
1
3
×
1
2
+
1
3
÷2
=
1
3
-
1
3
×
1
2
+
1
3
×
1
2

=(1-
1
2
+
1
2
)×
1
3

=1×
1
3

=
1
3


(3)
7
9
÷2
1
5
+
2
9
×
5
11
+
5
11
×10
=
7
9
×
5
11
+
2
9
×
5
11
+
5
11
×10,
=(
7
9
+
2
9
+10)×
5
11

=(1+10)×
5
11

=11×
5
11

=5;

5-
2
11
÷
9
22
-
2
3

=5-
2
11
×
22
9
-
2
3

=5-
4
3
-
2
3

=5-(
4
3
+
2
3
),
=5-2,
=3.
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