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

Toán Lớp 5: X _21,3=5,16 vậy x là 5 dam2 40m2. –. Dam2

Toán Lớp 5: X _21,3=5,16 vậy x là
5 dam2 40m2. ……… Dam2

Comments ( 2 )

  1. x – 21,3 = 5,16
    x = 5,16 + 21,3
    x = 26,46
    5dam2 40m2 = 5,40 Dam2
     

  2. X – 21,3 = 5,16
    X               = 5,16 + 21,3
    X               = 26,46
    5dam² 40m² =  5,40dam²
    => 1dam² = 100m²
    => 1m² = 0,01dam²

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