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

Toán Lớp 5: 4dam vuông bằng bao nhiêu mét vuông

Toán Lớp 5: 4dam vuông bằng bao nhiêu mét vuông

Comments ( 2 )

  1. Ta có : 1 dam² = 100m² 
    ⇒ 4 dam² = 4.100 = 400 m²

  2. 4 dam^2 = 400 m^2
    ________________________________________
    1 dam^2 = 100 m^2
    => 4 dam^2 = 4 × 100 = 400 m^2

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