18.76*9.9+1.879怎么简便运算
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18.76*9.9+1.879怎么简便运算
18.76*9.9+1.879怎么简便运算
18.76*9.9+1.879怎么简便运算
18.76*9.9+1.879
=1.876*99+1.876+0.003
=1.876*(99+1)+0.003
=1.876*100+0.003
=187.6+0.003
=187.603