Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

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

Toán Lớp 6: 1a26+4b4+57c bằng bao nhiêu abc+2000

Toán Lớp 6: 1a26+4b4+57c bằng bao nhiêu abc+2000

Comments ( 2 )

  1. \overline{1a26} + \overline{4b4} + \overline{57c}
    = 1000 + \overline{a00} + 20 + 6 + 400 + \overline{b0} + 4 + 500 + 70 + c
    = ( 1000 + 20 + 6 + 400 + 4 + 500 + 70 ) + ( \overline{a00} + \overline{b0} + c )
    = 2000 + \overline{abc}
    2000 + \overline{abc} = 2000 + \overline{abc} => \overline{1a26} + \overline{4b4} + \overline{57c} = 2000 + \overline{abc}
    #dtkc
     

  2. 1a26 + 4b4 + 57c
    = 1000 + a00 + 26 + 404 + b0 + 570 + c
    = (1000 + 26 + 404 + 570) + (a00 + b0 + c)
    = 2000 + abc (Đpcm)

Leave a reply

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