题目内容
把下列百分数化成小数. 38%= 0.38 0.38 |
73%= 0.73 0.73 |
99%= 0.99 0.99 |
0.9%= 0.009 0.009 |
115%= 1.15 1.15 |
0.75%= 0.0075 0.0075 |
45%= 0.45 0.45 |
19%= 0.19 0.19 |
75%= 0.75 0.75 . |
分析:把百分数化成小数时,只有把小数点向左移动两位,同时去掉百分号(%)即可.
解答:解:(1)38%=0.38;
(2)73%=0.73;
(3)99%=0.99;
(4)0.9%=0.009;
(5)115%=1.15;
(6)0.75%=0.0075;
(7)45%=0.45;
(8)19%=0.19;
(9)75%=0.75.
故答案为:0.38,0.73,0.99,0.009,1.15,0.0075,0.45,0.19,0.75.
(2)73%=0.73;
(3)99%=0.99;
(4)0.9%=0.009;
(5)115%=1.15;
(6)0.75%=0.0075;
(7)45%=0.45;
(8)19%=0.19;
(9)75%=0.75.
故答案为:0.38,0.73,0.99,0.009,1.15,0.0075,0.45,0.19,0.75.
点评:本题是考查分数化小数,属于基础知识.
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