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

Toán Lớp 5: 1/2 – 2/5 = ? Nhanh nhanh anha x 3

Toán Lớp 5: 1/2 – 2/5 = ?
Nhanh nhanh anha x 3

Comments ( 2 )

  1. 1/2 – 2/5 = 5/10 – 4/10 = 1/10
     

  2. 1/2-2/5
    =5/(10)-(4)/(10)
    =(5-4)/(10)
    =1/(10)
     

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

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