题目内容

直接写出得数．
5
7
×
3
4
=
7
9
÷
9
7
=
6
5
×
4
3
=
5
7
÷
15
2
=
4
7
×1=
8
9
÷
4
3
=
5
6
÷1=
19
20
×
15
38
=
9
10
÷
3
2
=
19
53
×0=
分析：本题根据分数乘法与除法的运算法则计算即可．
解答：解：
5
7
×
3
4
=
15
28
7
9
÷
9
7
=
49
81
6
5
×
4
3
=
8
5
5
7
÷
15
2
=
2
21
4
7
×1=
4
7
8
9
÷
4
3
=
2
3
5
6
÷1=
5
6
19
20
×
15
38
=
3
8
9
10
÷
3
2
=
3
5
点评：完成分数乘法与除法算式时要细心，注意约分．
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5
7
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2
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3
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3
4
-
1
2
=		 5.6÷4=
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5
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2
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3
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3
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直接写出得数
2
7
+
5
7
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1
8
+
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4
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2
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3
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直接写出得数．
5
7
-
1
7
=
3
8
+
4
8
=
3
5
+
2
5
=
1-
1
4
=		 50×3= 60×9=
400×5= 2000×7= 21×3=
12×5= 40÷6= 35÷4=
直接写出得数．
5
7
÷10=
3
8
×
4
9
=		 1÷
5
8
=		 8×
7
16
=
1+
2
3
=
3
14
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4
7
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5
×
1
4
÷
1
4
=		 1÷6×
1
6
=

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