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vickeycacao
2 năm trước
bài 3:Thực hiện phép tính(Tính nhanh nếu có thể): (-215+131+57)-(131-215+47) bài 4:tìm x các số nguyên x,y,biết: (2x-1).(y+3)=2 bài 1:a)viết theo thứ tự tăng dần:-1;-8;|-8|;|1|;3;|-2| b)viết tập hợp các số nguyên a biết :-1<|a|<4
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