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

Toán Lớp 5: 20092009 × 200820082008 – 200920092009 × 20082008. Giải thích hộ mình nữa nhé

Toán Lớp 5: 20092009 × 200820082008 – 200920092009 × 20082008. Giải thích hộ mình nữa nhé

Comments ( 2 )

  1. 20092009 × 200820082008 – 200920092009 × 20082008
    = 2009 × 10001 × 2008 × 100010001 – 2009 × 100010001 × 2008 × 10001
    = 2009 × ( 1001 – 1001 ) – 2008 × ( 100010001 – 100010001 )
    = 2009 × 0 – 2008 × 0
    = 0 × ( 2009 – 2008 )
    = 0 × 1
    = 0
    #dtkc
     

  2. 20092009 × 200820082008 – 200920092009 × 20082008
    = 2009 × 10001 × 2008 × 100010001 – 2009 × 100010001 × 2008 × 100001
    = 0 – 0
    = 0
    Cho mình xin hay nhất nha bạn!!!!!
    @Drew Mclntyre
     

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

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