1.|-0.25| - 【+(-5.75)】 + |0.1| - |-(+0.5)|2.1又3/4 - 2又1/6 - 1.75 + 3又2/3 3.3又1/4 + (-2又3/5) + (-5又3/4) + (-8又2/5)4.(-62.84)- (+38.57)+(37.16)-(-32.57)5.|-7.2-(-6.4)| +(-0.4 - |0.4| )6.-3

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1.|-0.25|-【+(-5.75)】+|0.1|-|-(+0.5)|2.1又3/4-2又1/6-1.75+3又2/33.3又1/4+(-2又3/5)+(-5又3/4)+(-8又2/5)4.(-62

1.|-0.25| - 【+(-5.75)】 + |0.1| - |-(+0.5)|2.1又3/4 - 2又1/6 - 1.75 + 3又2/3 3.3又1/4 + (-2又3/5) + (-5又3/4) + (-8又2/5)4.(-62.84)- (+38.57)+(37.16)-(-32.57)5.|-7.2-(-6.4)| +(-0.4 - |0.4| )6.-3
1.|-0.25| - 【+(-5.75)】 + |0.1| - |-(+0.5)|
2.1又3/4 - 2又1/6 - 1.75 + 3又2/3
3.3又1/4 + (-2又3/5) + (-5又3/4) + (-8又2/5)
4.(-62.84)- (+38.57)+(37.16)-(-32.57)
5.|-7.2-(-6.4)| +(-0.4 - |0.4| )
6.-3又1/2 -【(-1又5/6)- |-1/6|】

1.|-0.25| - 【+(-5.75)】 + |0.1| - |-(+0.5)|2.1又3/4 - 2又1/6 - 1.75 + 3又2/3 3.3又1/4 + (-2又3/5) + (-5又3/4) + (-8又2/5)4.(-62.84)- (+38.57)+(37.16)-(-32.57)5.|-7.2-(-6.4)| +(-0.4 - |0.4| )6.-3
1、|-0.25| - [+(-5.75)] + |0.1| - |-(+0.5)|
= 0.25+5.75+0.1+0.5
= 6.6
2、1又3/4 - 2又1/6 - 1.75 + 3又2/3
= 7/4-13/6-7/4+22/6
= 3/2
3、 3又1/4 + (-2又3/5) + (-5又3/4) + (-8又2/5)
= 13/4 - 13/5 - 23/4 - 42/5
= -5/2 - 11
= -27/2
4、(-62.84)- (+38.57)+(37.16)-(-32.57)
= -62.84 - 38.57 + 37.16 + 32.57
= -25.68 - 6
= -31.68
5、 |-7.2-(-6.4)| +(-0.4 - |0.4| )
= 0.8-0.8
= 0
6、-3又1/2 -[(-1又5/6)- |-1/6|]
= -7/2 -[-11/6-1/6]
= -7/2 + 2
= -3/2

(+0.25)+(3.25)-(-5.75) 0.25-【+(-5.75)】+(-0.1)-|-(+0.5)| 写成省略加号的形式 简便计算:5.75除以0.25+4.24乘4急!非常急! |-0.25|-【+(-5.75)】+(-0.1)-|-(+0.5)|呐,给咱把步骤说呐,给咱把步骤说下满,下满, 1.|-0.25| - 【+(-5.75)】 + |0.1| - |-(+0.5)|2.1又3/4 - 2又1/6 - 1.75 + 3又2/3 3.3又1/4 + (-2又3/5) + (-5又3/4) + (-8又2/5)4.(-62.84)- (+38.57)+(37.16)-(-32.57)5.|-7.2-(-6.4)| +(-0.4 - |0.4| )6.-3 0.25mol某固体a的质量为5.75g,标况下,2.8L气体b的质量为8.875g 1.a.的摩尔质量,他们的化学式是什么,.2.上述物质充分反应后.溶于水,稀释成200ml的溶液,则溶液的浓度是多少 1.(5.75-4.75)/[2.5+(0.75*1.25*8) 2.(6.9*3.6*3.5)/(1.25/0.25) 3.15.37*7.89-9.37*7.89+15.37*2.11-9.37*2.11-9.37*2.11 4.10-9.8+9.6-9.4+9.2-9.+0.8-0.6+0.4-0.2 5.2000+1999-1998-1997+1996+1995-1994-1993+.+4+4-2-1 6.(44332-443.32)/(88664-8 几道计算题,1.(17/2-6.5*17/13)/(5.75+7/3+1/4) |-0.25| - 【+(-5.75)】 + |0.1| - |-(+0.5)| 2.1又3/4 - 2又1/6 - 1.75 + 3又2/3 3.3又1/4 + (-2又3/5) + (- 5个数学题:(1) (-34)+(+42)+(-26)+(+14)(2) (+0.25)+(-4.4)+5.75+(-3.6)+(-1.8)(3) (-4又三分之二)+(-3又三分之一)+(+6又二分之一)+(-2又四分一) 简便算法,11.9*5.75-5.75*1.9 5.75乘5.75乘3.14等于多少 5.75-4.25-15.75等于? 1000除以32除以0.25除以1. 3x-0.25+1.25=1. 有A B C三种元素.已知5.75克单质A跟盐酸完全反应,在标准状况下可产生2.8升氢气和0.25摩尔N氯化A.B的气 6X-2.8=4.5 X÷0.25=1.2 3.6X+X=5.75 用方程算出答案,再检验!财富很高的.检验要像这样:方程左边=?           =方程右边 0.25: