问题 解答题
直接写出得数.
25×24=______;
4.2÷0.2=______;
1
4
×
2
5
=______;
12-2
7
9
=______;
1
1
7
×8
=______;
1.25×
4
5
=______;
1÷0.6=______; 4
2
7
÷2=______;
1
1
2
×1
1
2
=______;
1÷0.2=______;4×5%=______; 12-
4
9
-
5
9
=______.
答案

25×24=6004.2÷0.2=21
1
4
×
2
5
=
1
10
12-2
7
9
=9
2
9
1
1
7
×8
=9
1
7
1.25×
4
5
=1
1÷0.6=1
2
3
4
2
7
÷2=2
1
7
1
1
2
×1
1
2
=2
1
4
1÷0.2=54×5%=20% 12-
4
9
-
5
9
=11

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