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

Toán Lớp 7: (-3/4)mũ 2:(-1/4) mũ 2 +9.(-1/9)+|1 phần 1/2|

Toán Lớp 7: (-3/4)mũ 2:(-1/4) mũ 2 +9.(-1/9)+|1 phần 1/2|

Comments ( 2 )

  1. (-3/4)^{2}:(-1/4)^{2}+9.(-1/9)+|1 1/2|
    =9/16:1/16+9.(-1/9)+|3/2|
    =9+(-1)+3/2
    =8+3/2
    =19/2
    Đề bài 2.
    (-3/4)^{2}:(-1/4)^{2}+9.(-1/9)+|\frac{1}{1/2}|
    =9/16:1/16+9.(-1/9)+|1/2|
    =9+(-1)+2
    =8+2
    =10

  2. (-3/4)^2 :(-1/4)^2 +9.(-1/9)+|1/(1/2)|
    =[(-3/4):(-1/4)]^2+(-1)+2
    =3^2-1+2
    =9-1+2
    =8+2
    =10

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