怎么才算简单算
首先是取整
看看哪几个算起来是整数
7.29+2.71
其它没办法就顺着算就可以
解:7.29+3.87+2.71-1.13
=(7.29+2.71)+(3.87-1.13)
=10+2.74
=12.74
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7.29+3.87+2.71-1.13的简便计算方法是:(7.29+2.71)+(3.87-1.13)=10+2.74=12.74
7.29+3.87+2.71-1.13
=(7.29+2.71)+(3.87-1.13)
=10+2.74
=12.74
7.29+3.87+2.71-1.13
=7.3-0.01+3.9-0.03+2.7+0.01-1.1-0.03
=(7.3+3.9+2.7-1.1)-(0.03+0.03)
=12.8-0.06
=12.74