(1).(-3)x(-7/5)x(-0.25)x4/7x(-1/3)×(-8); (2).(
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(1).(-3)x(-7/5)x(-0.25)x4/7x(-1/3)×(-8); (2).(
(1).(-3)x(-7/5)x(-0.25)x4/7x(-1/3)×(-8); (2).(3/4-7/12-4/15)×(-60); (3).25×1/4-25×1/2+25×(-3/4); (4).(-1/12-1/36+1/6)×(-36); (3).(-6)×(+37)×(-1/3)×(-5/74); 怎麽写,急啊………急啊…………
(1).(-3)x(-7/5)x(-0.25)x4/7x(-1/3)×(-8); (2).(3/4-7/12-4/15)×(-60); (3).25×1/4-25×1/2+25×(-3/4); (4).(-1/12-1/36+1/6)×(-36); (3).(-6)×(+37)×(-1/3)×(-5/74); 怎麽写,急啊………急啊…………
![(1).(-3)x(-7/5)x(-0.25)x4/7x(-1/3)×(-8); (2).(](/uploads/image/z/18079930-10-0.jpg?t=%EF%BC%881%EF%BC%89.%EF%BC%88-3%EF%BC%89x%EF%BC%88-7%2F5%EF%BC%89x%EF%BC%88-0.25%EF%BC%89x4%2F7x%EF%BC%88-1%2F3%EF%BC%89%C3%97%EF%BC%88-8%EF%BC%89%EF%BC%9B+%EF%BC%882%EF%BC%89.%EF%BC%88)
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再答: (1)原式
=[(-3)×(-1/3)]×[(-0.25)×(-8)]×[(-7/5)×4/7
=1×2×(-4/5)
=-1.6
再答: (2)原式
=3/4×(-60)-7/12×(-60)-4/15×(-60)
=-45+35+16
=-10+16
=6
再答: (3)原式
=25×(1/4-1/2-3/4)
=25×(-1)
=-25
再答: (4)原式
=(-1/12)×(-36)-1/36×(-36)+1/6×(-36)
=3+1-6
=4-6
=-2
再答: (-6)×(+37)×(-1/3)×(-5/74)
=[(-6)×(-1/3)]×37×(-5/74)
=2×37×(-5/74)
=74×(-5/74)
=-5
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再答: ???
再问: 谢谢啦!还有一题呢?怎麽写?谢谢啦!谢谢啦!谢谢啦!谢谢啦!
再问: 谢谢啦
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再问: 帮我一下嘛!
再答: (1)原式
=[(-3)×(-1/3)]×[(-0.25)×(-8)]×[(-7/5)×4/7
=1×2×(-4/5)
=-1.6
再答: (2)原式
=3/4×(-60)-7/12×(-60)-4/15×(-60)
=-45+35+16
=-10+16
=6
再答: (3)原式
=25×(1/4-1/2-3/4)
=25×(-1)
=-25
再答: (4)原式
=(-1/12)×(-36)-1/36×(-36)+1/6×(-36)
=3+1-6
=4-6
=-2
再答: (-6)×(+37)×(-1/3)×(-5/74)
=[(-6)×(-1/3)]×37×(-5/74)
=2×37×(-5/74)
=74×(-5/74)
=-5
再答: 望釆纳
再答: ???
再问: 谢谢啦!还有一题呢?怎麽写?谢谢啦!谢谢啦!谢谢啦!谢谢啦!
再问: 谢谢啦
再问: 哈哈
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