在下感激不尽!(1)-7/11+(-7/11)-7/11(2)1-(1/3+2又1/2-1又1/6)(3)-3又1/3×2又1/5÷(-1又1/2)(4)-5.7÷(-3又1/6)×(-6)(5)33又1/3÷[(-2.5)×7÷(1又2/5)×(-5)](6)1/6×(-2-3)÷1/2×1/3(7)3又1/4×(3又1/7-7又1/3)×7/22÷(-1又1/21)(8)(-5/6)÷(-3
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![在下感激不尽!(1)-7/11+(-7/11)-7/11(2)1-(1/3+2又1/2-1又1/6)(3)-3又1/3×2又1/5÷(-1又1/2)(4)-5.7÷(-3又1/6)×(-6)(5)33又1/3÷[(-2.5)×7÷(1又2/5)×(-5)](6)1/6×(-2-3)÷1/2×1/3(7)3又1/4×(3又1/7-7又1/3)×7/22÷(-1又1/21)(8)(-5/6)÷(-3](/uploads/image/z/2397838-22-8.jpg?t=%E5%9C%A8%E4%B8%8B%E6%84%9F%E6%BF%80%E4%B8%8D%E5%B0%BD%21%281%29-7%2F11%2B%28-7%2F11%29-7%2F11%282%291-%281%2F3%2B2%E5%8F%881%2F2-1%E5%8F%881%2F6%29%283%29-3%E5%8F%881%2F3%C3%972%E5%8F%881%2F5%C3%B7%28-1%E5%8F%881%2F2%29%284%29-5.7%C3%B7%28-3%E5%8F%881%2F6%29%C3%97%28-6%29%285%2933%E5%8F%881%2F3%C3%B7%5B%28-2.5%29%C3%977%C3%B7%281%E5%8F%882%2F5%29%C3%97%28-5%29%5D%286%291%2F6%C3%97%28-2-3%29%C3%B71%2F2%C3%971%2F3%287%293%E5%8F%881%2F4%C3%97%283%E5%8F%881%2F7-7%E5%8F%881%2F3%29%C3%977%2F22%C3%B7%28-1%E5%8F%881%2F21%29%288%29%28-5%2F6%29%C3%B7%28-3)
在下感激不尽!(1)-7/11+(-7/11)-7/11(2)1-(1/3+2又1/2-1又1/6)(3)-3又1/3×2又1/5÷(-1又1/2)(4)-5.7÷(-3又1/6)×(-6)(5)33又1/3÷[(-2.5)×7÷(1又2/5)×(-5)](6)1/6×(-2-3)÷1/2×1/3(7)3又1/4×(3又1/7-7又1/3)×7/22÷(-1又1/21)(8)(-5/6)÷(-3
在下感激不尽!
(1)-7/11+(-7/11)-7/11
(2)1-(1/3+2又1/2-1又1/6)
(3)-3又1/3×2又1/5÷(-1又1/2)
(4)-5.7÷(-3又1/6)×(-6)
(5)33又1/3÷[(-2.5)×7÷(1又2/5)×(-5)]
(6)1/6×(-2-3)÷1/2×1/3
(7)3又1/4×(3又1/7-7又1/3)×7/22÷(-1又1/21)
(8)(-5/6)÷(-3)×(-1又4/5)×(-2)
(9)(1/7-1又1/5)÷(-1又5/7)
(10)1又1/2×5/7-(-5/7)×2又1/2+(-1/2)×5/7
(11)1÷(-2/3)×(-2/3)
在下感激不尽!(1)-7/11+(-7/11)-7/11(2)1-(1/3+2又1/2-1又1/6)(3)-3又1/3×2又1/5÷(-1又1/2)(4)-5.7÷(-3又1/6)×(-6)(5)33又1/3÷[(-2.5)×7÷(1又2/5)×(-5)](6)1/6×(-2-3)÷1/2×1/3(7)3又1/4×(3又1/7-7又1/3)×7/22÷(-1又1/21)(8)(-5/6)÷(-3
(1)-7/11+(-7/11)-7/11
=-7/11-7/11-7/11
=(-7/11)×3(可省略)
=-21/11=-1.909(选一个)
(2)-(1/3+2又1/2-1又1/6)
=-(1/3+5/2-7/6)
=-(2/6+15/6-7/6)
=-5/3
(3)-3又1/3×2又1/5÷(-1又1/2)
=-10/3×11/5×-2/3
=44/9
烦死了,不会用计算器么?只要用CASIO 的FX-82及以上的图形计算器就可以轻松解决了呀,大不了分开计算,写下分开的答案就可以作为过程了呀!况且这么简单的问题根本不用计算器的,口算就行,如果这么简单的问题都要求答案或用计算器,对以后学习根本没有任何帮助.之前三道题打字打的我累死,你有时间不如自己学着算算,总比万事问别人强.