题目内容

计算下面各题,能简算的必须简算.
4
9
-
4
9
1
4
×35+65÷4
1
6
+
1
5
)×6×5
3
4
÷
9
10
-
5
14
×
7
15
8
3
-0.6
3
4
×
5
6
+
3
4
×
1
6
(1)5×
4
9
-
4
9

=
20
9
-
4
9

=
16
9


(2)
1
4
×35+65÷4
=
1
4
×35+65×
1
4

=
1
4
×(35+65)
=
1
4
×100
=25;

(3)(
1
6
+
1
5
)×6×5
=
1
6
×6×5+
1
5
×6×5
=5+6
=11;

(4)
3
4
÷
9
10
-
5
14
×
7
15

=
5
6
+
1
6

=1;

(5)4÷
8
3
-0.6
=1.5-0.6
=0.9;

(6)
3
4
×
5
6
+
3
4
×
1
6

=
3
4
×(
5
6
+
1
6

=
3
4
×1
=
3
4
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