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

Toán Lớp 6: tính giá trị biểu thức 10 ².3 ²+5 ³ (572-72) ²+3 ³.2-20000

Toán Lớp 6: tính giá trị biểu thức
10 ².3 ²+5 ³
(572-72) ²+3 ³.2-20000

Comments ( 2 )

  1. 10^2 . 3^2 + 5^3
    =100 . 9 + 125
    =900 + 125
    =1125
    (572-72)^2 + 3^3 . 2 – 20000
    =500^2 + 3^3 . 2 -20000
    =250000 + 27 . 2 – 20000
    =250000 + 54 – 20000
    =250054 -20000
    =230054

  2. 10^2 . 3^2 + 5^3
    = 100 . 9 + 125
    = 900 + 125
    = 1025
    _________________________
    ( 572 – 72 )^2 + 3^3 . 2 – 20 000
    = 500^2 + 27 . 2 – 20 000
    = 250 000 + 54 – 20 000
    = 250 054 – 20 000
    = 230054

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

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