题目内容

计算下列各题,能简算的要简算.
6
5
×
6
7
-
6
7
÷5
4-
9
15
÷
9
5
-
2
3
3
4
-
1
10
÷2)×
5
14
3
4
×
5
12
+
5
12
×
5
4
(1)
6
5
×
6
7
-
6
7
÷5,
=
6
5
×
6
7
-
6
7
×
1
5

=
6
7
×(
6
5
-
1
5
),
=
6
7
×1,
=
6
7


(2)4-
9
15
÷
9
5
-
2
3

=4-
1
3
-
2
3

=4-(
1
3
+
2
3
),
=4-1,
=3;

(3)(
3
4
-
1
10
÷2)×
5
14

=(
3
4
-
1
20
)×
5
14

=
14
20
×
5
14

=
1
4


(4)
3
4
×
5
12
+
5
12
×
5
4

=
5
12
×(
3
4
+
5
4
),
=
5
12
×2,
=
5
6
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