计算:0.999×1.3-0.111×1.7 (简便计算)

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计算:0.999×1.3-0.111×1.7(简便计算)计算:0.999×1.3-0.111×1.7(简便计算)计算:0.999×1.3-0.111×1.7(简便计算)0.999×1.3-0.111×

计算:0.999×1.3-0.111×1.7 (简便计算)
计算:0.999×1.3-0.111×1.7 (简便计算)

计算:0.999×1.3-0.111×1.7 (简便计算)
0.999×1.3-0.111×1.7=0.111×9×1.3-0.111×1.7=0.111×11.7-0.111×1.7=
0.111×(11.7-1.7)=0.111×10=1.11