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

Toán Lớp 5: 15 dm² 4cm² bằng bao nhiêu dm²

Toán Lớp 5: 15 dm² 4cm² bằng bao nhiêu dm²

Comments ( 2 )

  1. 15dm^2  4cm^2 = 15dm^2 0,04dm^2 = 15,04dm^2
    Vì 1cm^2 = 1 : 100 = 0,01dm^2 

  2. Đổi 4cm^2=0,04dm^2
    =>15dm^2 4cm^2=15+0,04=15,04dm^2
    Vậy 15dm^2 4cm^2=15,04dm^2
     

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

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