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 4: c.50 +( y x 2) = 50 + 12 x 2 96 : ( y : 6) = 96 : ( 2 x 12)

Toán Lớp 4: c.50 +( y x 2) = 50 + 12 x 2
96 : ( y : 6) = 96 : ( 2 x 12)

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
    c.50 +( y xx 2) = 50 + 12 xx 2
    \qquad y xx 2=50-50+12xx 2
    \qquad y xx2 =12xx 2
    \qquad y=12xx2\div 2=12
    Vậy y=12
    96 : ( y : 6) = 96 : ( 2 xx 12)
    \qquad y:6=96:[96:(2xx 12)]
    \qquad y:6=96:96xx(2xx12)
    \qquad y:6=2xx12
    \qquad y=24xx6=144
    Vậy y=144.

  2. c) 50 + ( y xx 2) = 50 + 12 xx 2
    50 + ( y xx 2) = 50 + 24
    50 + ( y xx 2) = 74
    ( y xx 2) = 74 – 50
    y xx 2 = 24
    y = 24 : 2
    y = 12
    Vậy y = 12
    d) 96 : ( y : 6) = 96 : ( 2 xx 12)
    96 : ( y : 6) = 96 : 24
    96 : ( y : 6) =  4
    ( y : 6) = 96 : 4
    y : 6 = 24
    y = 24 xx 6
    y = 144
    Vậy y = 144

Leave a reply

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