题目内容

直接写出得数．
1
4
+
1
5
=		1-
6
11
=		1÷
6
7
=
1
2
-
1
3
=
1
5
×
1
5
=		0÷
19
10
=		0.9+99×0.9=（
5
6
+
1
4
）×12=
38+0.625=35÷0.7=0.52=9π=
1
4
+
1
5
=
9
20
，		1-
6
11
=
5
11
，		1÷
6
7
=
7
6
，
1
2
-
1
3
=
1
6
，
1
5
×
1
5
=
1
25
，		0÷
19
10
=0，		0.9+99×0.9=90，（
5
6
+
1
4
）×12=13，
38+0.625=38.625，35÷0.7=50，0.52=0.25，9π=28.26．
练习册系列答案
相关题目
请你很快算出
4
9
+
1
9
=		1-
1
3
=		81-55=37+63=
200×8=40×5=110×6=0×99=
56÷7=49÷5=198×5≈503×8≈
13
18
增加______个
1
18
后与l相等，而减少______个
1
18
后与
1
2
相等．
直接写出复数．
3
5
×
1
2
=		1÷
2
3
=
4
5
÷8=		7×
2
7
=
3
8
×12=
1
5
×
16
25
=
1
4
-
1
5
=
1
3
+
1
4
=
9
10
÷
3
20
=		14÷
7
8
=
直接写出得数．
2
10
+
7
10
=
5
8
-
3
8
=		1-
5
9
=
5
8
+
1
4
=
1
2
+
1
6
=
3
4
-
2
3
=
2
5
-
1
3
=
5
11
-
3
11
=
计算．
7
8
-
6
8
=
4
7
-
3
7
=
2
8
+
5
8
=
1
9
+
8
9
=
8
8
-1=
8
9
-
5
10
=
3
5
+
2
5
=
2
3
-
2
3
=		1
1
3
-
1
3
=
5
9
+
1
9
=		7-2
1
2
=		1
1
5
+0.8=		1.2-
3
5
=
1.7-
5
10
=		2.75+7
1
4
=		8.25-
2
4
=
5
9
-
1
3
=
甲数是
2
3
，乙数是
2
9
，甲、乙两数的和是______，甲、乙两数的差是______．
看图列式计算．

（1）______+______=______（2）______-______=______．

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网