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

Toán Lớp 7: a. (0,4)^5/(0,2)^6 b. 15/12+5/13-3/12-18/13

Toán Lớp 7: a. (0,4)^5/(0,2)^6
b. 15/12+5/13-3/12-18/13

Comments ( 1 )

  1. $\textit{a.}$ $\dfrac{(0,4)^5}{(0,2)^6}=160$
    $\dfrac{0,4^5}{0,2^6}=\dfrac{0,01024}{0,000064}=160$
    Câu b mk chụp nha
     

    toan-lop-7-a-0-4-5-0-2-6-b-15-12-5-13-3-12-18-13

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