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

Toán Lớp 6: A=(9/2-21/4.58/55) ³.25/36+17/10

Toán Lớp 6: A=(9/2-21/4.58/55) ³.25/36+17/10

Comments ( 2 )

  1. A = (9/2−21/4 × 58/55)^3 × 25/36 + 17/10
    = (9/2−609/110)^3 × 25/36 + 17/10 
    = (−57/55)^3 × 0,7 + 1,7  
    = (−1,113) × 0,7 + 1,7 
    = (−0,78) + 1,7  
    = 0,927
     

  2. A=(9/2−21/4 × 58/55)^3×25/36+17/10
    A=(9/2−609/110)^3×25/36+17/10
    A=(−57/55)^3×0,7+1,7
    A=(−1,113)×0,7+1,7
    A=(−0,78)+1,7
    A=0,927

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