100高分提问有理数除法 做对了再+50分急用1.-1÷(-1/10)÷(+1/100)÷(-1/2004)= 2.(-81)÷2又1/4 +4/9÷(-16)= 3.(-5)÷(-7/25)+(-7)÷(-7/25)+(-12)÷(-7/25) 4.-1/42÷(1/6-2/7+
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![100高分提问有理数除法 做对了再+50分急用1.-1÷(-1/10)÷(+1/100)÷(-1/2004)= 2.(-81)÷2又1/4 +4/9÷(-16)= 3.(-5)÷(-7/25)+(-7)÷(-7/25)+(-12)÷(-7/25) 4.-1/42÷(1/6-2/7+](/uploads/image/z/8617443-51-3.jpg?t=100%E9%AB%98%E5%88%86%E6%8F%90%E9%97%AE%E6%9C%89%E7%90%86%E6%95%B0%E9%99%A4%E6%B3%95+%E5%81%9A%E5%AF%B9%E4%BA%86%E5%86%8D%2B50%E5%88%86%E6%80%A5%E7%94%A81.%EF%BC%8D1%C3%B7%EF%BC%88%EF%BC%8D1%2F10%EF%BC%89%C3%B7%EF%BC%88%2B1%2F100%EF%BC%89%C3%B7%EF%BC%88%EF%BC%8D1%2F2004%EF%BC%89%3D+2.%EF%BC%88%EF%BC%8D81%EF%BC%89%C3%B72%E5%8F%881%2F4+%2B4%2F9%C3%B7%EF%BC%88%EF%BC%8D16%EF%BC%89%3D+3.%EF%BC%88%EF%BC%8D5%EF%BC%89%C3%B7%EF%BC%88%EF%BC%8D7%2F25%EF%BC%89%2B%EF%BC%88-7%EF%BC%89%C3%B7%EF%BC%88%EF%BC%8D7%2F25%EF%BC%89%2B%EF%BC%88%EF%BC%8D12%EF%BC%89%C3%B7%EF%BC%88%EF%BC%8D7%2F25%EF%BC%89+4.-1%2F42%C3%B7%EF%BC%881%2F6-2%2F7%2B)
100高分提问有理数除法 做对了再+50分急用1.-1÷(-1/10)÷(+1/100)÷(-1/2004)= 2.(-81)÷2又1/4 +4/9÷(-16)= 3.(-5)÷(-7/25)+(-7)÷(-7/25)+(-12)÷(-7/25) 4.-1/42÷(1/6-2/7+
100高分提问有理数除法 做对了再+50分急用
1.-1÷(-1/10)÷(+1/100)÷(-1/2004)= 2.(-81)÷2又1/4 +4/9÷(-16)= 3.(-5)÷(-7/25)+(-7)÷(-7/25)+(-12)÷(-7/25) 4.-1/42÷(1/6-2/7+2/3-3/14)= 5.(1/6-2/7+2/3-3/14)÷(-1/42)=
呵呵 速度帮我算出来 我不要求 完全对 错1个2个也没事 也要质量哈
100高分提问有理数除法 做对了再+50分急用1.-1÷(-1/10)÷(+1/100)÷(-1/2004)= 2.(-81)÷2又1/4 +4/9÷(-16)= 3.(-5)÷(-7/25)+(-7)÷(-7/25)+(-12)÷(-7/25) 4.-1/42÷(1/6-2/7+
1.-1÷(-1/10)÷(+1/100)÷(-1/2004)
=10÷(+1/100)÷(-1/2004)
=1000÷(-1/2004)
=-2004000
2.(-81)÷2又1/4 +4/9÷(-16)
=(-81)×4/9+4/9÷(-16)
=-36-1/36
=-36又1/36
3.(-5)÷(-7/25)+(-7)÷(-7/25)+(-12)÷(-7/25)
=(-5-7-12)÷(-7/25)
=-24×(-25/7)
=600/7
=85又5/7
4.-1/42÷(1/6-2/7+2/3-3/14)
=-1/42÷(7/42-12/42+28/42-9/42)
=-1/42÷1/3
=-1/14
5.(1/6-2/7+2/3-3/14)÷(-1/42)
=(7/42-12/42+28/42-9/42)÷(-1/42)
=1/3×(-42)
=-14