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

Toán Lớp 4: 15dm2 2cm2= =-… cm2

Toán Lớp 4: 15dm2 2cm2= ………………. cm2

Comments ( 2 )

  1. 15 dm2, 2cm2 = ….. cm 2
     15 dm2, 2cm2= 1500 cm2 + 2 cm2 =  1502 cm2
                  đáp án : 1502 cm2
            CHÚC BẠN HỌC TỐT NHA!!!

  2. $\text{15 $dm^{2}$ =1 500 $cm^{2}$ }$
    $\text{2 $cm^{2}$ = 2 $cm^{2}$ }$
    ⇒ $\text{15 $dm^{2}$ 2 $cm^{2}$ = 1 500 $cm^{2}$ + 2 $cm^{2}$ ( $cm^{2}$ ) = 1502 $cm^{2}$}$

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