问题 解答题
计算下列各式
(1)
2
×
5
                    
(2)
72
8

(3)
2
3
×
27
8
              
(4)
4
5
÷
8
5
答案

(1)

2
×
5
=
2×5
=
10

(2)

72
8
=
6
2
2
2
=3;

(3)

2
3
×
27
8

=

2
3
×
27
8

=

9
4

=

3
2

(4)

4
5
÷
8
5

=

4
5
×
5
8

=

1
2

=

2
2

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