Từ thiện đây, từ thiện đây!!! Hôm nay tui từ thiện điểm nữa nè Lần này tui ra tận 5 câu nên tận 20d nha Đề bài nè: a)-29*(85-47)-85*(47-29) b)-15*(23-29)+23(15-29) c)13*(55-29)-55*(13-29) d)7*(27+25)-27*(37+25) e)28*(-25)+72*(-25) Tui làm từ thiện nên đề dễ nha mng, ko sansi, cà khịa nha mng :v P/s: tui vote 5 sao hết nha Luật nè: Làm ra từng câu nha nếu ko tui spam đó, ko sao chép mạng nha Dấu sao là dấu nhân nha mng Có lẽ cap hơi dài nhể!?

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