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

Toán Lớp 5: 312,12 m vuông = =..ha

Toán Lớp 5: 312,12 m vuông = …………..ha

Comments ( 2 )

  1. 312,12  m^{2} = 3,1212  ha
    1 m^{2} = 0,01 ha
    1 ha = 100 m^{2}

  2. $\text{#Chớp#}$
    $\text{312, 12 $m^{2}$  = 3, 1212 ha → vì 1 m² = 0,01 ha nên → 312, 12 x 0,01 = 3, 1212}$
    $\text{→ 312, 12$m^{2}$ = 3, 1212 ha }$
     

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

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