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

Toán Lớp 6: [(6 mũ 2:2 mũ 2-7 mũ 3:7 mũ 2):3]

Toán Lớp 6: [(6 mũ 2:2 mũ 2-7 mũ 3:7 mũ 2):3]

Comments ( 2 )

  1. [6^2:2^2-7^3:7^2]:3
    =[(6:2)^2 – $7^{3-2}$]:3
    =[3^2 – 7^1]:3
    =[9-7]:3
    =2:3
    =2/3

  2. $@Zeng$
    $[(6^2:2^2-7^3:7^2):3]$
    $=[(36:4-7^3:7^2):3]$
    $=[(9-7):3]$
    $=2:3$
    $=\frac{2}{3}$ 
     

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

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