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

Toán Lớp 5: 1/5 ha = -… m2 3/4 ha = -… m2

Toán Lớp 5: 1/5 ha = ……. m2
3/4 ha = ……. m2

Comments ( 2 )

  1. Vì 1ha = 10000 m²
    Nên 1/5ha = 10000 : 5 = 2000m²
            3/4ha = 10000 : 4 xx 3 = 7500m²
    #$Gin :333$

  2. $\text{ $\dfrac{1}{5}$ha = $\dfrac{1}{5}$ × 10 000 = 2000m² }$
    $\text{ $\dfrac{3}{4}$ha = $\dfrac{3}{4}$ × 10 000 = 7500m² }$
    $\text{ Áp dụng : }$
    $\text{ 1ha = 10 000m² }$

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