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

Toán Lớp 6: Bài 2.Thực hiện phép tính : a) 31 . { 330 : [178 – 4 . ( 35 – 21 : 3 )]}

Toán Lớp 6: Bài 2.Thực hiện phép tính :
a) 31 . { 330 : [178 – 4 . ( 35 – 21 : 3 )]}

Comments ( 2 )

  1. a) 31 . { 330 : [178 – 4 . ( 35 – 21 : 3 )]}
    = 31 . { 330 : [178 – 4 . ( 35 – 7)]}
    = 31 . { 330 : [178 – 4 . 28]}
    = 31 . { 330 : [178 – 112]}
    = 31 . { 330 : 66 }
    = 31 . 5
    = 155

  2. Giải đáp:
    a) 31 . { 330 : [178 – 4 . ( 35 – 21 : 3 )]}
    =31 . { 330 : [178 – 4 . ( 35 – 7)]}
    =31 . { 330 : [178 – 4 . 28]}
    =31 . { 330 : [178 –112]}
    =31 . { 330 : 66}
    =31 . 5
    =155
    $#na$

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

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