0.999×1.3-0.111×2.7等于几?
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![0.999×1.3-0.111×2.7等于几?](/uploads/image/z/1813491-27-1.jpg?t=0.999%C3%971.3%EF%BC%8D0.111%C3%972.7%E7%AD%89%E4%BA%8E%E5%87%A0%3F)
0.999×1.3-0.111×2.7等于几?
0.999×1.3-0.111×2.7等于几?
0.999×1.3-0.111×2.7等于几?
0.999x1.3-0.111x2.7
=0.111x11.7-0.111x2.7
=0.111x(11.7-2.7)
=0.111x9
=0.999
晕··不会用计算机算啊?
0.999*1.3-0.111*2.7
=0.999*1.3-0.111*(9*0.3)
=0.999*1.3-0.999*0.3
=0.999*(1.3-0.3)
=0.999*1
=0.999
0.999×1.3-0.111×2.7=0.111×(9×1.3-2.7)=0.111×9=0.999
0.999