问题 解答题
选择合适的方法计算:
(1)
15
6
=
(2)
54
3
=
(3)
3
1
5
÷
1
3
5
=
(4)
4y
2xy
=
答案

(1)

15
6
=
15
6
=
10
2

(2)

3
6
3
=3
2

(3)原式=

16
5
÷
8
5
=
16
5
×
5
8
=
2

(4)原式=

4y
2xy
=
2
x
=
2x
x

选择题
判断题