题目内容

下面各题怎样简便就怎样算
360÷15-2.5×1.4=
5
6
×
2
3
+
4
9
÷
1
6
=
0.16+4÷(
3
8
-
1
8
)=
3
7
-
2
5
+
4
7
-
3
5
=
(1)360÷15-2.5×1.4,
=24-2.5×(1+0.4),
=24-2.5×1-2.5×0.4,
=24-2.5-1,
=21.5-1,
=20.5;

(2)
5
6
×
2
3
+
4
9
÷
1
6

=
5
9
+
4
9
×6,
=
5
9
+
24
9

=
29
9


(3)0.16+4÷(
3
8
-
1
8
),
=0.16+4÷
1
4

=0.16+16,
=16.16;

(4)
3
7
-
2
5
+
4
7
-
3
5

=(
3
7
+
4
7
)-(
2
5
+
3
5
),
=1-1,
=0.
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