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Question

Tính HỢP LÍ:a) -67.(1 - 301) - 301 .67b) ( - 3879 - 3879 - 3879 -3879) . (-25)2:15

chuche · Accepted Answer

`a)-67.(1-301)-301.67``=67.(-1).(-300)-301.67``=67.300-301.67``=67.(300-301)``=67.(-1)``=-67`__`b)(-3879-3879-3879-3879).(-25)``=3879.(-4).(-25)``=3879.100``=387900`Câu trả lời: `a)-67.(1-301)-301.67``=67.(-1).(-300)-301.67``=67.300-301.67``=67.(300-301)``=67.(-1)``=-67`__`b)(-3879-3879-3879-3879).(-25)``=3879.(-4).(-25)``=3879.100``=387900`

Phan Văn Toàn · Answer

a)−67.(1−301)−301.67�)-67.(1-301)-301.67=67.[−(1−301)−301]=67.[-(1-301)-301]=67.(−1+301−301)=67.(-1+301-301)=67.(−1)=67.(-1)=−67=-67b)(−3879−3879−3879−3879).(−25)�)(-3879-3879-3879-3879).(-25)=3879.(−4).(−25)=3879.(-4).(-25)=3879.100=3879.100=387900ttiticticktick hhohôhộhộ tớCâu trả lời:  a)−67.(1−301)−301.67�)-67.(1-301)-301.67=67.[−(1−301)−301]=67.[-(1-301)-301]=67.(−1+301−301)=67.(-1+301-301)=67.(−1)=67.(-1)=−67=-67b)(−3879−3879−3879−3879).(−25)�)(-3879-3879-3879-3879).(-25)=3879.(−4).(−25)=3879.(-4).(-25)=3879.100=3879.100=387900ttiticticktick hhohôhộhộ tớ

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