问题 解答题
直接写得数.
2
3
×2=
10
9
=
6
7
÷
2
7
=
1-25%=
4×10%=
9
11
=
1
4
+
2
3
=
5
21
×
14
25
=
答案

2
3
×2=
4
3
10
9
=
9
10
6
7
÷
2
7
=3
1-25%=0.75
4×10%=0.4
9
11
=11
1
4
+
2
3
=
11
12
5
21
×
14
25
=
2
15

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