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

Toán Lớp 6: Mong mọi người giúp ạ 12 + 3 × [ 39 – ( 5 – 2 )²] ????????????

Toán Lớp 6: Mong mọi người giúp ạ
12 + 3 × [ 39 – ( 5 – 2 )²]
????????????

Comments ( 2 )

  1. 12 + 3 × [ 39 – ( 5 – 2 )²]
    = 12 + 3 × [ 39 – 3² ]
    = 12 + 3 . [ 39 – 9 ]
    = 12 + 3 . 30
    = 12 + 90
    = 102
    Chúc bạn học tốt!!
     

  2. 12 + 3 xx [ 39 – ( 5 – 2 )^{2}]
    = 12 + 3 xx [ 39 – 3^{2}]
    = 12 + 3 xx [ 39 – 9]
    = 12 + 3 xx 30
    = 12 + 90
    = 102

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

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