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

Toán Lớp 6: (1/2 mũ 2) – 1 1/2 +0,5. 12/5+ 5% mik đg cần gấp

Toán Lớp 6: (1/2 mũ 2) – 1 1/2 +0,5. 12/5+ 5%
mik đg cần gấp

Comments ( 2 )

  1. Giải đáp:
    $\\$
     (1/2^2)- 1 1/2 + 0,5 × 12/5 + 5%
    = 1/4 – 3/2 + 1/2 × 12/5 + 1/20
    = 1/4 – 3/2 +6/5 + 1/20
    = 5/20 – 30/20 + 24/30 + 1/20
    = (5-30 + 24 + 1)/20
    = 0/20
    = 0

  2.  (1/2)^2 – 11/2 + 0,5 . 12/5 + 5%
    =1/4 – 3/2 + 1/2 . 12/5 + 1/20 
    = 1/4 – 3/2 + 6/5 + 1/20 
    = 5/20 – 30/20 + 24/20 + 1/20
    = (5 – 30 + 24 + 1)/20
    = 0/20
    = 0
    @Chuyentoan2k9
    No copy
    Xin hay nhất

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

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