题目内容

直接写出得数.
21×
14
=

1
3
=

1
4
÷
2
3
=

得×
1
x
=
1
÷
3
=
1
4
+
1
3
=
四-
2
=
7
10
×
4
7
=
直接写出得数.
21×
14
=7
1
2

1
=左;

1
4
÷
2
=
8

1
2
=1
1
1
÷
=
1
1
4
+
1
=
7
12
一-
2
=4
7
1p
×
4
7
=
2
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