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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: 754892:754 giup toi voi moi nguoi oi chieu toi nop bai roi ghi dat tinh nha

Toán Lớp 5: 754892:754 giup toi voi moi nguoi oi chieu toi nop bai roi ghi dat tinh nha

Comments ( 2 )

  1.     $754892^{}$ = $754000^{}$ + $892^{}$
    ⇒$754892^{}$ : $754^{}$
    =$(754000^{}$ + $892^{})$ : $754^{}$ 
    =$754000^{}$ : $754^{}$+ $892^{}$ : $754^{}$
    = $1000^{}$ + $\dfrac{892}{754}$
    = $1000^{}$ + $1\dfrac{69}{377}$
    = $1001\dfrac{69}{377}$
     Đặt tính : $754892^{}$ |  $754^{}$   
                       $754^{}$       |  $11^{}$
                             $892^{}$ | 
                             $754^{}$ |
                             $138^{}$
    Vậy $754892^{}$ : $754^{}$ = $11^{}$ dư $138^{}$

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222-9+11+12:2*14+14 = ? ( )