(455×5.45-0.45×2)÷(4.55+545×4.54)怎么算
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(455×5.45-0.45×2)÷(4.55+545×4.54)怎么算
![(455×5.45-0.45×2)÷(4.55+545×4.54)怎么算](/uploads/image/z/7285471-7-1.jpg?t=%28455%C3%975.45%EF%BC%8D0.45%C3%972%29%C3%B7%284.55%EF%BC%8B545%C3%974.54%29%E6%80%8E%E4%B9%88%E7%AE%97)
(455×5.45-0.45×2)÷(4.55+545×4.54)
=(455×5.45-0.9)÷(4.55+5.45×454)
=(455×5.45-0.9)÷(4.55+5.45×455-5.45)
=(455×5.45-0.9)÷(455×5.45-0.9)
=1
=(455×5.45-0.9)÷(4.55+5.45×454)
=(455×5.45-0.9)÷(4.55+5.45×455-5.45)
=(455×5.45-0.9)÷(455×5.45-0.9)
=1