1.-0.5-(-3又1/4)+2.75-(+7又1/2)2.[(2/3-1/2)÷1/30]×(-1/5)
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1.-0.5-(-3又1/4)+2.75-(+7又1/2)2.[(2/3-1/2)÷1/30]×(-1/5)1.-0.5-(-3又1/4)+2.75-(+7又1/2)2.[(2/3-1/2)÷1/30
1.-0.5-(-3又1/4)+2.75-(+7又1/2)2.[(2/3-1/2)÷1/30]×(-1/5)
1.-0.5-(-3又1/4)+2.75-(+7又1/2)
2.[(2/3-1/2)÷1/30]×(-1/5)
1.-0.5-(-3又1/4)+2.75-(+7又1/2)2.[(2/3-1/2)÷1/30]×(-1/5)
1.-0.5-(-3又1/4)+2.75-(+7又1/2)
=-1/2+13/4+11/4-15/2
=13/4+11/4-1/2-15/2
=24/4-16/2
=6-8
=-2
2.[(2/3-1/2)÷1/30]×(-1/5)
=(1/6 *30)*(-1/5)
=5*(-1/5)
=-1
1.(-0.5)-(-3又1/4)+2.75-(+7又1/2)2.2又3/3+0.25-(7又1/2)+(-2又1/4)-1.5-2.753.-0.5+(-15)-(-17)-|-12|
(-4.09)-(-6又4分之一1) (-8又5分之4)-(-2.8) -0.5-(-3又4分之1)+2.75-7又2分之1|-7又2分之1|-|-9又2分之1| |-7又2分之1-(-9又2分之1)| -32又3分之1+5又4分之1+3又7分之1-5又4分之1+12又7分之6
(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)
(-0.5)+(3又1/4)+2.75+(-5又1/2) =
(-0.5)+3又4分之3+2.75+(-5又2分之1)要过程
(-0.5)+3又4分之1+2.75+(5又2分之1)怎么做
﹣0.5-3又4分之1+(﹣2.75)+7又2分之1
-0.5-3又4分之1+2.75-(+7又2分之1),求过程分数先跟分数加再化简小数,不要直接化小数.-0.5-3又4分之1+2.75-(+7又2分之1) -4又8分之7-(+4又4分之一)-(5又2分之1)+(-3又8分之1)
1.-70-28-(-19)+(+24)-(12)2.(+1/6)-(+1/3)-(-1/12)3.(+2又5/6)+(-3/8)+(1又1/3)+(-1/2)4.(-2/3)-1/12-(-1/4)5.-0.5-(-3又1/4)+2.75-(+7又1/2)6.(-4又7/9)-(-3又1/6)-(+2又2/9)+(-6又1/6)
|-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) + (-
(1),(+1.25)+(-1/2)+(-3/4)+(+1又3/4) (2),(-0.5)-(3又1/4)+2.75-(+7又1/2)(1),2又3/4+0.25-(-7又1/2)+(-2又1/4)-1.5-2.75(2),-12又1/3-[10又1/3+(-8又1/3)-3又2/3](3),如果|a|=3,|b|=1,求:
带过程后给+分一:(-5又1/6)-(-1又3/4)-(3又5/6)-(-12又4/7)-(12又4/7)二:(-0.5)-(-3又3/4)+(-2.75)-(5又1/2)三:-1/2+1/3-1/4-1/5+1/6四:-32又1/3-[5又1/4+(-3又1/9)-525-2又6/7修正:第四题是:-32又1/3-[5又1/4+(-3又1/9)-5.2
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
18又3/4+(-2.75)+(2.125)+(+12又5/7)+(-4又1/8)
2又4分之3-(8又2分之1)+(-2又4分之1)+0.25-1.5-2.75
(1又2/3+2又3/4+~+7又8/9+8又9/10)除以(3又1/3+5又2/4+7又3/5+~+15又7/9+17又8/10
-14又2/3-11又2/15-(-12又2/3)-14+(-11又2/15)(-4又1/8)-|-1+2+0.125|-|-3又1/3|-(-6又1/7)+(-5又1/7)又怎么做
(-2.75)+(4又1/4)+(-2又3/8)+5/8= (-20.75)+3又1/4+(-4.25)+(+19又 3/4)= (-6)-(-5)-(-6)= (-6又1/8)+3.125)=(-2.75)+(4又1/4)+(-2又3/8)+5/8= (-20.75)+3又1/4+(-4.25)+(+19又 3/4)=