题目内容

计算．
1-
2
3
=
3
7
+
2
7
=
7
7
-
4
7
=
2
5
+
3
5
=
9
10
-
3
10
=
3
4
-
1
4
=		1-
3
4
=
2
8
+
4
8
=
1-
2
3
=
1
3
3
7
+
2
7
=
5
7
7
7
-
4
7
=
3
7
2
5
+
3
5
=1
9
10
-
3
10
=
3
5
3
4
-
1
4
=
1
2
1-
3
4
=
1
4
2
8
+
4
8
=
3
4
练习册系列答案
相关题目
直接写出得数．
1÷
4
9
=
910-559+1=
1-
3
11
+
10
11
=
（7÷
1
7
）×（
1
7
÷7）=
10÷1%×
1
1000
=
直接写出得数．
1
3
-
1
4
=		0.7-0.62=12÷25=
8
11
×
5
8
=
10÷
5
7
=
3
4
+
1
4
×0=		13÷
1
13
×
1
13
=		10÷
1
10
=
直接写得数．
4÷40%=
3
10
×
5
6
=		20×5.5=（
1
4
+
1
8
）×4=
1
3
-
1
4
=		2.9+3.4=0.1÷0.01=6-
8
15
-
7
15
=
6
7
÷3=		6×
2
3
=
1
2
÷
1
8
=		1÷
1
3
-
1
3
÷1=
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=
1
4
+
2
4
=
4
7
+
2
7
=
5
8
-
3
8
=
3
4
-
1
4
=
5
10
-
1
10
=
1-
5
6
=		1-
1
2
=
1
2
+
1
2
=
4
5
-
4
5
=
用自己喜欢的方法计算下面各题．
8
15
+
4
9
-
2
15

1
12
-
1
4
+
5
12

9
7
+
1
8
+
3
8
+
5
7

0.125+
7
11
-
7
11
+
71
8
．
直接写出得数．
1
3
+
1
2
=
6
5
-
4
5
+
1
5
=
1
2
+
3
4
=
5
6
-
2
3
=
4
11
+
7
11
=
8
9
+
1
18
=
5
12
+
6
7
+
7
12
=
1
5
-
1
8
=
1
9
+
1
8
=		 3-
3
7
-
4
7
=
1-
4
5
中的“1”可以看成（　　）
A．2个
1
5
B．5个
1
2
C．2个
1
2
D．5个
1
5

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