题目内容

把下面的分数写成小数:
3
10
=
 
9
10
=
 
1
100
=
 
13
100
=
 
1
1000
=
 
17
1000
=
 
125
1000
=
 
500
1000
=
 
考点:小数与分数的互化
专题:运算顺序及法则
分析:把分数化成小数,用分子除以分母.由此解答.
解答: 解:
3
10
=0.3

9
10
=0.9

1
100
=0.01

13
100
=0.13

1
1000
=0.001

17
1000
=0.017

125
1000
=0.125

500
1000
=0.5

故答案为:0.3;0.9;0.01;0.13;0.001;0.017;0.125;0.5.
点评:此题主要考查小数与分数的互化方法,把分数化成小数,用分子除以分母即可.
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