369*0.99+3.69简便计算
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369*0.99+3.69简便计算369*0.99+3.69简便计算369*0.99+3.69简便计算369*0.99+3.69=369*0.99+369*0.01=369*（0.99+0.01）=3
369*0.99+3.69简便计算
369*0.99+3.69简便计算
369*0.99+3.69简便计算
369*0.99+3.69
=369*0.99+369*0.01
=369*（0.99+0.01）
=369
369*0.99+3.69
=3.69*99+3.69
=3.69*(99+1)
=3.69*100
=369
(370-1)(1-0.01)+3.69=370-3.70-1+0.01+3.69=369
提出3.69得：3.69*(100*0.99+1)=3.69*(99+1)=3.69*100=369