题目内容

直接写出得数
8.1÷0.03=
3
5
+3=
5
16
×
8
15
=
7
9
-
1
3
=
8
9
×
9
24
=		134-18=1.5×4=7.45+8.55=
1
4
+
1
5
=		2-
3
4
=		1-
4
9
+
5
9
=
4
7
×______=1．
8.1÷0.03=270
3
5
+3=3
3
5
5
16
×
8
15
=
1
6
7
9
-
1
3
=
4
9
8
9
×
9
24
=
1
3
134-18=1161.5×4=67.45+8.55=16
1
4
+
1
5
=
9
20
2-
3
4
=1
1
4
1-
4
9
+
5
9
=
10
9
4
7
×
7
4
=1
练习册系列答案
相关题目
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
=
5个
1
16
与8个
1
16
合并起来，结果是多少？
同分母分数相加减，只需把______相加减，______不变．
计算下面各题．
3
10
+
1
6
-
2
5
7
8
-
1
2
+
3
4
1
2
+
3
5
-
7
10
1-(
3
4
-
2
5
)
1
3
+(
5
6
-
3
4
)
4
5
-(
1
6
+
3
10
)．
在括号里填上适当的分数．
3
10
+
2
5
=
3
10
+
()
10
=
()
()

5
8
-
7
12
=
()
24
-
()
()
=
()
()

4
5
-
3
4
=
()
()
-
()
()
=
()
()

1
4
+
3
10
=
()
()
+
()
()
=
()
()
．
写出下面各题的得数．
763-197=3÷0.43=37+1.6=57÷0.3=
2
3
+
1
6
=		1-
2
7
=		25
1
4
×4=		14
7
12
÷7=
直接写结果
1
2
-
1
3
=		570÷
1
10
4
5
×20=
1
2
+3.5=
11-
1
7
-
6
7
=
7
8
×
4
21
=		1÷
5
6
=		10-
4
7
=
1
4
÷
1
8
=		19.9+19.9×99=
一盒饼干，小红吃了它的
1
4
，妈妈吃了它的
1
8
，还剩这盒饼干的（　　）
A．
1
4
B．
5
8
C．
1
12

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