题目内容

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=
1
6
+
1
4
=
5
12
2
3
÷
1
6
=4
5
6
×
3
10
=
1
4
3
4
-
1
5
=
11
20
2.1×0.3=0.633.6-1.24=2.366÷15%=400.5×3=1.5
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相关题目
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
=
()
()
+
()
()
=
()
()
．
异分母分数不能直接相加减，是因为它们的计数单位不同．______．
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=
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
=
直接写出得数．
210÷7=1.7+3=10-0.46=25×0.4=
2
3
×
3
4
=		10÷
2
5
=
1
7
-
1
8
=
2
3
+
1
9
=
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=
5
8
-
2
8
=______
______个
1
8
减______个
1
8
，剩______个
1
8
，就是
()
()
．
5
8
-
3
8
=
7
9
+
5
9
=		 1-
11
17
=
5
18
+
7
18
=		 1-
5
7
=
5
6
+
5
6
=

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