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

Toán Lớp 5: 5m2=…cm2. 2608m2=…dam2… 2km2=…ha 30000hm2…ha

Toán Lớp 5: 5m2=…cm2. 2608m2=…dam2…
2km2=…ha 30000hm2…ha

Comments ( 2 )

  1. 5m^2= 500cm^2
    1m^2= 100cm^2
    => 5xx100= 500m^2
    2km^2= 200ha
    1km^2= 100ha
    => 2xx100= 200ha
    2608m^2= 26,08dam^2
    1m^2= 0,01dam^2
    => 2608xx0,01= 26,08dam^2
    30000hm^2= 30000ha
    Vì ha= hm^2
    => 30000= 30000
    #Thỏ
     

  2. 5m2=  502…cm2.
    2608m2=..   26 ,08 .dam2…
    2km2=..   200  .ha
    30000hm2..=     30000   .ha vì ha hay hm2 là giống nhau
     

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