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kaiduongthien
2 năm trước
câu a [-6-2] .[-6+2] câu b [7.3-3] : [-6] câu c [-5 + 9]. [-4] câu d 72 : [-6.2 + 4] câu e -3.7-4 . [-5]+1 câu F 18-10 : [+2]- 7 câu g 15 : [-5].[-3]-8 câu h [6.8-10:5]+3.[-7]
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