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nhanta610
2 năm trước
1)Tổng của hai số bằng 760. Tìm hai số đó, biết 1/3 số thứ nhất bằng 1/5 số thứ hai. 2)Tích sau có chữ số tận cùng là chữ số nào? 19 x 29 x 39 x 49 x 59 x69 x 79 x 89 x 99 nhanh nha + chi tiết vô
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