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

Toán Lớp 5: Tìm y : d ) ( y + 4 ) : 0,5 + 1 2/3 = 13 2/3

Toán Lớp 5: Tìm y :
d ) ( y + 4 ) : 0,5 + 1 2/3 = 13 2/3

Comments ( 2 )

  1. d, (y + 4) : 0,5 + 1 2/3 = 13 2/3
      (y + 4) : 0,5 + 5/3 = 41/3
      (y + 4) : 0,5 = 41/3 – 5/3
      (y + 4) : 0,5 = 36/3
      (y + 4) : 0,5 = 12
      y + 4 = 12 xx 0,5
      y + 4 = 6
      y = 6 – 4
      y = 2
    Vậy y = 2 

  2. (y+4) : 0,5 +12/3 =132/3
    ⇒(y+4) : 0,5 + 4 = 44
    ⇒(y+4):0,5=40
    ⇒y+4 =40 × 0,5
    ⇒y+4=20
    ⇒y=16
    Vậy y=16

    toan-lop-5-tim-y-d-y-4-0-5-1-2-3-13-2-3

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