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

Toán Lớp 6: [157.1^2021 – (13-4)^2] : 4 – 3^5 :3^2

Toán Lớp 6: [157.1^2021 – (13-4)^2] : 4 – 3^5 :3^2

Comments ( 2 )

  1. [157 . 1^2021 – (13 – 4)^2] : 4 – 3^5 : 3^2
    = [157 . 1 – 9^2] : 4 – 3^5 : 3^2
    = [157 . 1 – 81] : 4 – 3^5 : 3^2
    = 76 : 4 – 3^5 : 3^2
    = 76 : 4 – 3^3
    = 19 – 27
    = (-8)

  2. [ 157. 1^{2021} – ( 13 – 4 )^2 ] : 4 – 3^5 : 3^2
    = [ 157. 1 – 9^2 ] : 4 – 3^3
    = [ 157 – 81 ] : 4 – 27
    = 76 : 4 – 27
    = 19 – 27
    = -8
     

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