题目内容

直接写出得数．
3-
2
7
=
1
3
+
2
7
=
7
8
+
5
8
=
7
9
-
5
6
+
2
9
=
3
4
-0.5
1
3
-
5
24
=		1-
3
5
+
2
5
=		2-
1
4
-0.75=
3-
2
7
=2
5
7
1
3
+
2
7
=
13
21
7
8
+
5
8
=1
1
2
7
9
-
5
6
+
2
9
=
1
6
3
4
-0.5=
1
4
1
3
-
5
24
=
1
8
1-
3
5
+
2
5
=
4
5
2-
1
4
-0.75=1
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相关题目
计算下面各题．
7
8
-
2
8
=
3
5
+
1
5
=
4
7
-
3
7
=
1
6
+
4
6
=
7
8
-
4
8
=
4
10
+
5
10
=
2
9
+
7
9
=		1-
5
8
=
直接写出得数
3
7
×
7
9
=		1-
8
11
=
4
5
÷
5
8
=		（7+
7
8
）×8=
0.1÷10%=
3
4
×6=		a-
2
5
a=		12×（
1
3
-
1
4
+
5
6
）=
直接写出得数．
1
6
+
1
4
=
2
3
÷
1
6
=
5
6
×
3
10
=
3
4
-
1
5
=
2.1×0.3=3.6-1.24=6÷15%=0.5×3=
计算下面各题．
4
7
-
2
7
=
2
6
+
1
6
=
3
9
+
6
9
=
1-
1
8
=
2
3
-
1
3
=
1
2
+
1
2
=
2
2
-
2
2
=
6
7
-
6
7
=
3
10
+
4
10
=
直接写得数
7.2÷9=
1
2
-
1
3
=
1
4
+
1
8
=
5
9
-
5
6
+
4
9
=		5-1
1
2
=
6
7
-
6
7
×0=
直接写出得数．
1
8
+
4
8
=
8
9
-
1
9
=
4
6
-
3
6
=
1
4
+
1
4
+
1
4
=
1
2
+
1
2
=
5
6
-
1
6
=		1-
3
5
=		1-
1
8
-
3
8
=
3
10
+
7
10
=
13
14
+
1
14
=
2
25
+
1
25
=
3
16
+
4
16
+
8
16
=
看谁算得又对又快
0.45-0.23=363+423=27÷
3
11
=
2
3
×
4
5
=
1
2
÷4=
1
2
+
1
3
=
1
3
-
1
4
=		1÷
1
10
=		16÷
4
7
=
3
8
×
4
9
=
1
6
+
2
3
=
3
4
÷9=
6
7
÷12=
4
9
×
1
3
=
7
12
×
3
14
=
（
2
3
+
1
4
）+
3
4
    
 
2
7
+
1
8
+
3
8
+
5
7
      
 
7
8
-
5
12
+
1
6
．

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