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 5: a. 840m = -..km b. 5mvuông 9cm vuông = — M vuông

Toán Lớp 5: a. 840m = ……km
b. 5mvuông 9cm vuông = …….. M vuông

Comments ( 2 )

  1. a) 840 m = 0,84 km
    b) 5m^2 9cm^2 = 5,0009 m^2
    _________________________________________________________
    -> Vì 1 m = 0,001 km
    => 840 m = 840 × 0,001 = 0,84 km
    _________________________________________________________
    -> Vì 1 cm^2 = 0,0001 m^2
    => 5m^2 9cm^2 = 5m^2 + 0,0009 m^2 = 5,0009 m^2
    _________________________________________________________
    @Sú

  2. a) 840 m = 840 : 1000 = 0,84 km
    b) 5 $m^{2}$ 9 $cm^{2}$ = 5 $m^{2}$ + 0, 009 $m^{2}$ = 5,009 $m^{2}$

Leave a reply

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