题目内容

直接写得数．
4
7
×21=		18÷
3
5
=
1
3
+
2
5
=
10
9
×
6
5
=
5
8
-
1
4
=
4
5
÷
8
15
=		0÷
11
12
=
4
9
÷
9
4
=
4
7
×21=12；
18÷
3
5
=18×
5
3
=30；
1
3
+
2
5
=
5
15
+
6
15
=
11
15
；
10
9
×
6
5
=
4
3
；
5
8
-
1
4
=
5
8
-
2
8
=
3
8
；
4
5
÷
8
15
=
4
5
×
15
8
=
3
2
；
0÷
11
12
=0；
4
9
÷
9
4
=
4
9
×
4
9
=
16
81
．
练习册系列答案
相关题目
直接写出得数．
2
7
+
3
7
=
7
8
-
5
8
=
1
2
+
1
3
=		1-
2
5
=
2
9
+
7
9
=
8
15
-
1
3
=
3
4
+
3
8
=
4
7
-
1
2
=
1
12
+
3
12
=		2+
5
6
=
1
8
+
3
8
=
3
10
+
9
10
=
7
16
-
3
16
=		1-
5
18
=
19
12
-1=
17
20
+
7
20
=
5
6
+（
1
6
+
1
6
）=
17
30
+
23
30
-
7
30
=
1-（
2
9
+
4
9
）=		1-
5
12
+
11
12
=
1
10
-0.01=		2
2
5
+
1
2
=		27
18
19
÷9=		（
1
4
-
1
6
）×12=		0.39÷2
3
5
=		2
1
5
+5.75=
1
3
7
÷1
2
7
=		7-7÷9=
2
3
×1.8=		0.6÷
3
5
=		2.1÷0.35=1
3
20
÷1+0.15=
直接写出得数．
1
3
+
5
6
=
1
8
×4=		0.4÷
2
5
=		0×1
1
3
=
12×
5
6
=		5-
3
5
=		4÷
1
5
=
2
7
÷
2
3
=
直接写出得数．
5
28
÷
1
5
=
1
5
÷3=		12×
2
3
=		2-
1
4
=
3
4
+
1
2
=
9
10
×
5
12
=		2÷
1
5
=
3
8
+
1
2
=
20÷
5
9
=
34
39
×
3
17
=
直接写得数．
1
3
-
1
4
=
1
4
+
3
8
=
2
5
×30=
5
6
÷5=		2÷
2
3
=
470-407=13×50=8.64-5.04=500÷25=4.57+5.43=
同分母分数相加减，只需把______相加减，______不变．
计算：3
4
5
-2
3
5
=______．

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