题目内容

9
4
11
-1
1
3
-4
2
3
2
3
×
4
15
+
2
3
×
11
15
(5.52÷0.6-8.6)×1.5;
3
4
-
2
3
×(
5
8
-
1
2
);
(6
1
2
-5
3
10
)×(7-4
1
3
);
1
5
÷[(
1
6
+
5
18
)×
3
5
].
(1)9
4
11
-1
1
3
-4
2
3

=9
4
11
-(1
1
3
+4
2
3

=9
4
11
-6
=3
4
11


(2)
2
3
×
4
15
+
2
3
×
11
15

=
2
3
×(
4
15
+
11
15

=
2
3
×1
=
2
3


(3)(5.52÷0.6-8.6)×1.5
=(9.2-8.6)×1.5
=0.6×1.5
=0.9;

(4)
3
4
-
2
3
×(
5
8
-
1
2

=
3
4
-
2
3
×
1
8

=
3
4
-
1
12

=
2
3


(5)(6
1
2
-5
3
10
)×(7-4
1
3

=
6
5
×
8
3

=
16
5


(6)
1
5
÷[(
1
6
+
5
18
)×
3
5
]
=
1
5
÷[
4
9
×
3
5
]
=
1
5
÷
4
15

=
3
4
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