问题 解答题
直接写得数
1.25×0.8=
1
3
-
1
4
=
1
3
×
1
4
=
4
5
=
11
12
÷
7
8
×
7
8
=
5
12
÷
5
6
=
5÷1%=1-7%=1-
3
5
×
1
4
=
20×(2+
1
4
)=
答案

1.25×0.8=1,
1
3
-
1
4
=
1
12
1
3
×
1
4
=
1
12
4
5
=2.5,
11
12
÷
7
8
×
7
8
=
11
12
5
12
÷
5
6
=
1
2
5÷1%=500,1-7%=0.93,1-
3
5
×
1
4
=
17
20
20×(2+
1
4
)=45,

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