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

Toán Lớp 3: a/ ve doan thang AB dai 6cm b/ ve doan thang CD gap doi doan thang AB

Toán Lớp 3: a/ ve doan thang AB dai 6cm b/ ve doan thang CD gap doi doan thang AB

Comments ( 2 )

  1. Giải đáp:
    AB = 6cm
    CD=ABx2 =>CD=6×2
    => CD=12
     

    toan-lop-3-a-ve-doan-thang-ab-dai-6cm-b-ve-doan-thang-cd-gap-doi-doan-thang-ab

  2. AB=6cm
    CD gấp đôi AB => CD= AB x 2 = CD = 6 x2=12 (cm ) 
     

    toan-lop-3-a-ve-doan-thang-ab-dai-6cm-b-ve-doan-thang-cd-gap-doi-doan-thang-ab

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