题目内容

计算下列各题、能简算的要简算.
14
5
-
1
3
-
5
3
2
3
×
5
4
÷
10
9
25-25×
99
100
1
4
-
1
20
)×20
7
10
÷16÷
14
5
3
4
×[(
7
15
-
1
5
)]÷
2
3
(1)
14
5
-
1
3
-
5
3

=
14
5
-(
1
3
+
5
3
),
=2
4
5
-2,
=
4
5


(2)
2
3
×
5
4
÷
10
9

=
10
12
×
9
10

=
3
4


(3)25-25×
99
100

=25×(1-
99
100
),
=25×
1
100

=
1
4


(4)(
1
4
-
1
20
)×20
=
1
4
×20-
1
20
×20,
=5-1,
=4;

(5)
7
10
÷16÷
14
5

=
7
10
×
5
14
×
1
16

=
1
4
×
1
16

=
1
64


(6)
3
4
×(
7
15
-
1
5
÷
2
3

=
3
4
×
4
15
÷
2
3

=
1
5
×
3
2

=
3
10
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