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

Toán Lớp 5: 15m2 24dm2 ==-.m2

Toán Lớp 5: 15m2 24dm2 =……………..m2

Comments ( 2 )

  1. $\#phnn$
    – 1 dm^2 =1/100 m^2 =0,01 m^2
    => 24 dm^2 =24/100 m^2 =6/25 m^2 =0,24 m^2
    -> 15 m^2 24 dm^2 =15 m^2 +0,24 m^2 =15,24 m^2
    $\\$ -> 15 m^2 24 dm^2 =15,24 m^2

  2. Ta có: 15m^2 24 dm^2=15,24 m^2
    – Vì 1m^2=100dm^2 => 15m^2 24 dm^2=15,24 m^2

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

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