题目内容

直接写得数．

57－8＝　　　　35－9＝　　　　11－3＝

答案：49,26,8
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直接写得数．
5
7
-
3
7
=
1
3
-
1
5
=
5
12
+
1
6
=
3
5
+
1
10
=
1-
1
2
-
1
4
=
17
12
-
1
6
-
5
6
=
8
9
-
1
3
=
4
9
+
7
9
=
直接写得数．
57+5.43=		 0÷
3
5
=		 122=
75%÷3=
1
5
×99+
1
5
=		 0.25×4=
直接写得数
2
5
×
5
7
=		 25×
1
10
=
1
5
-
1
6
=		 15×
4
5
=
5
6
-
2
3
=
4
9
×
3
8
=
1
2
+
1
3
=
19
53
×
2
5
×0=
2-
6
13
=		 100×
3
25
=
直接写得数
5×
5
7
=
8
9
÷4=
7
10
×
1
7
=
3
4
-
1
8
=
1
3
÷
3
4
=
1
7
×
2
3
=
1
4
+
1
5
=
4
13
×39=		 2÷
3
5
=
4
7
×4+
3
7
=
直接写得数．
5
7
+
2
7
=		 4-1.63=
3
5
×85=
3
4
÷6=
3÷
1
9
=
6
17
÷
9
22
=
1
4
×
2
5
÷
2
3
=
5
16
÷
10
21
=
9
10
×9+
9
10
=		 27×5%=
3
4
×
1
2
-20%=
1
6
÷6=

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