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

Toán Lớp 5: Tinh bang cach thuan tien nhat: 30/4 – 6/8 – 15/20

Toán Lớp 5: Tinh bang cach thuan tien nhat:
30/4 – 6/8 – 15/20

Comments ( 2 )

  1. 30/4 – 6/8 – 15/20
    = 300/40 – 30/40 – 30/40
    = {300 – 30 – 30}/40
    = 240/40 = 6
    #dtkc

  2. Giải đáp:
     30/4 – 6/8 – 15/20
    =30/4*20-6/8*10- 15/20*4
    =30/80-6/80-15/80
    =30-6-15
    =9
    Lời giải và giải thích chi tiết:
     

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