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: tính f 123.(-25)+25.123 h ( -57) .35 – 65.57 i 89 . ( -126) – 74 . 80

Toán Lớp 6: tính
f 123.(-25)+25.123
h ( -57) .35 – 65.57
i 89 . ( -126) – 74 . 80

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    f) 123.(-25)+25.123
    = 123 . (-25+25)
    = 123 .     0
    =       0
    h) ( -57) .35 – 65.57
    = 57. (-35) – 65 . 57
    = 57 . ( -35 – 65)
    = 57 . (-100)
    = -5700
    i) 89 . ( -126) – 74 . 89
    = 89. (-126 – 74)
    = 89 . (-200)
    = -17 800

  2.  $\text{ f) 123. ( -25 ) + 25. 123 }$
    $\text{ = 123. [ ( -25 ) + 25 ] }$
    $\text{ = 123. 0 }$
    $\text{ = 0 }$
    $\text{ h) ( -57 ). 35 – 65. 57 }$
    $\text{ = 57. ( -35 ) – 65. 57 }$
    $\text{ = 57. [ ( -35 ) – 65 ] }$
    $\text{ = 57. ( -100 ) }$
    $\text{ = -5700 }$
    $\text{ i) 89. ( -126 ) – 74. 89 }$
    $\text{ = 89. [ ( -126 ) – 74 ] }$
    $\text{ = 89. ( -200 ) }$
    $\text{ = -17 800 }$

Leave a reply

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