题目内容
用简便方法计算.
17.3+0.45+3.25+2.7
答案:
解析:
解析:
|
17.3+0.45+3.25+2.7 =(17.3+2.7)+(0.45+3.25) =20+3.7 =23.7 |
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题目内容
用简便方法计算.
17.3+0.45+3.25+2.7
|
17.3+0.45+3.25+2.7 =(17.3+2.7)+(0.45+3.25) =20+3.7 =23.7 |