问题 解答题
直接写得数.
45×
3
5
=
1
3
=
2
5
4
9
÷
5
6
=
6
25
×
5
12
=
1.8-40%=
答案

45×
3
5
=27,
1
3
=3,
2
5
=
5
2
4
9
÷
5
6
=
8
15
6
25
×
5
12
=
1
10
1.8-40%=1.4.

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