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

Toán Lớp 4: (33+35+37+39)×4 = Giúp em với nhé

Toán Lớp 4: (33+35+37+39)×4 =
Giúp em với nhé

Comments ( 2 )

  1. =(33+35+37+39)x4
    =(68+37+39)x4
    =(105+39)x4
    =144×4 
    =576

  2. (33 + 35 + 37 + 39) xx 4
    = (70 + 74) xx 4
    = 144 xx 4
    = 576
    Hoặc :
    (33 + 35 + 37 + 39) xx 4
    = 33 xx 4 + 35 xx 4 + 37 xx 4 + 39 xx 4
    = 132 + 140 + 148 + 156
    = 280 + 296
    = 576

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