6.19*2.05+79.5*0.619的简便运算必须是简便的呐~
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![6.19*2.05+79.5*0.619的简便运算必须是简便的呐~](/uploads/image/z/108227-11-7.jpg?t=6.19%2A2.05%2B79.5%2A0.619%E7%9A%84%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%E5%BF%85%E9%A1%BB%E6%98%AF%E7%AE%80%E4%BE%BF%E7%9A%84%E5%91%90%7E)
6.19*2.05+79.5*0.619的简便运算必须是简便的呐~
6.19*2.05+79.5*0.619的简便运算
必须是简便的呐~
6.19*2.05+79.5*0.619的简便运算必须是简便的呐~
6.19*2.05+79.5*0.619
=6.19×2.05+7.95×6.19
=6.19×(2.05+7.95)
=6.19×10
=61.9
6.19*2.05+79.5*0.619
=6.19*2.05+7..5*10*0.619
=6.19x(2.05+7.95)
=6.19x10
=61.9