试题:
1.25÷2.5=36×(
3
4
+
5
6
)=
9
9
10
÷9=
1
5
÷
1
5
×5=
8-8÷9=
4
7
÷7=
小数除法 2016-05-21

答案:

我来补答
(1)1.25÷2.5=0.5;

(2)36×(
3
4
+
5
6

=36×
3
4
+36×
5
6

=27+30,
=57;

(3)9
9
10
÷9
=
99
10
×
1
9

=1
1
10


(4)5×
1
5
÷
1
5
×5
=
1
5
÷
1
5
×5×5,
=1×5×5,
=25;

(5)8-8÷9
=8-
8
9

=7
1
9


(6)
4
7
÷7=
4
49
 
 
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