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

Toán Lớp 6: Giúp vs ạ (-12).(-3) + 6.(-8)

Toán Lớp 6: Giúp vs ạ
(-12).(-3) + 6.(-8)

Comments ( 2 )

  1. (-12)×(-3)+6×(-8)
    =36+(-48)
    =36-48
    =-12
    $@Masonn$
     

  2. (-12).(-3)+6.(-8)
    = 36+6.(-8)
    = 36+(-48)
    = 36-48
    =-12
    —————————
    Áp dụng các quy tắc:
    @ Nhân chia trước, cộng trừ sau
    @ (-).(-)=(+)
    @ (+).(-)=(-)
     

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