题目内容

直接写得数．
3
4
×
8
15
=
5
7
÷
5
7
=
8
13
÷4=
1÷
4
9
=		 0.25÷0375= 28÷
7
8
=
7
15
÷
2
15
=		 9÷
1
9
=		 12÷
1
5
=
0÷
8
13
×
5
7
=
分析：依据分数乘除法的计算方法，逐题计算即可．
解答：
解：
3
4
×
8
15
=
2
5
5
7
÷
5
7
=1
8
13
÷4=
2
13
1÷
4
9
=
9
4
 0.25÷0375=
2
3
 28÷
7
8
=32
7
15
÷
2
15
=
7
2
 9÷
1
9
=81		 12÷
1
5
=60
0÷
8
13
×
5
7
=0
点评：此题主要考查分数乘除法的计算方法的灵活应用．
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直接写得数
6÷
3
4
=
2
5
÷
3
10
=
3
4
×8=		 15÷1%=
3
4
-
1
2
=		 1.05-
1
2
=		 3.8÷0.19= 327-199=
2.4×0.5=
3
4
×
5
6
÷
5
6
=
直接写得数．
3
4
×8=
5
7
×14=
7
12
×10=
2
9
×15=
5×
2
15
=		 36×
5
8
=		 27×
5
12
=		 100×
13
25
=
7
8
×5=
1
6
×4=		 9×
7
12
=		 15×
2
15
=
直接写得数．
3
4
×8=
5
7
×14=
7
12
×3=
2
9
×15=		 5×
2
15
=		 36×
5
9
=
24×
5
12
=		 100×
13
25
=
7
8
×5=
1
6
×4=		 9×
7
12
=		 15×
2
15
=
直接写得数．
3
4
×8=
2
3
÷2=
9
10
÷
3
5
=
1
6
×
3
8
=
10×
4
15
=
1
2
-
1
3
=
2
3
+
2
9
=		 21×
5
7
=
3
4
÷9=
7
8
÷
1
24
=
直接写得数．
3
4
+
1
4
÷
3
5
=
4
5
÷
3
4
×
3
4
=		 （
3
8
-
1
12
）×24=		 3.39÷339=
1
2
×
2
3
÷
1
2
×
2
3
=		 2.54×99+2.54=
6
7
×
4
9
=		 1.8+2%=

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