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

Toán Lớp 2: 100+22+33+11+100+33+22= ko nhom van nhanh nhe

Toán Lớp 2: 100+22+33+11+100+33+22=
ko nhom van nhanh nhe

Comments ( 2 )

  1. 100 + 22 + 33 + 11 + 100 + 33 + 22
    = ( 100 + 100 ) + ( 22 + 33 ) × 2 + 11
    = 200 + 55 × 2 + 11
    = 200 + 110 + 11
    = 310 + 11
    = 321

  2. $\text{100 + 22 + 33 + 11 + 100 + 33 + 22}$
    $\text{= (100 + 100) + (22 + 33) + (33 + 22) + 11}$
    $\text{= 200 + 55 + 55 + 11}$
    $\text{= 200 + 110 + 11}$
    $\text{= 310 + 11}$
    $\text{= 321}$
     

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

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