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

Toán Lớp 6: 37. 39 + 78. 14 + 13. 85 + 52. 55 giải hộ mình với

Toán Lớp 6: 37. 39 + 78. 14 + 13. 85 + 52. 55
giải hộ mình với

Comments ( 2 )

  1.  37.39+78.14+13.85+52.55 
    =37.13.3+13.6.14+13.85+13.4.55
    =13.(37.3+6.14+85+4.55)
    =13.500
    =6500

  2. 37 . 39 + 78 . 14 + 13 . 85 + 52 . 55
    = 111 . 13 + 13 . 84 + 13 . 85 + 13 . 220
    = 13 . ( 111 + 84 + 85 + 220 )
    = 13 . 500
    = 6500
    #dtkc

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