8道计算题,现在就要啊!15+(-20)+6+(-8)(-7)+8+3+(-6)+(-5)+93 又3/5+4又8/5+(-5又2/3)+(-1/3)(-0.5)+2又1/4+(-9又1/2)+9.75-19+28+19+(-8)9+(-7)+10+(-3)+(-9)0.36+(-7.4)+0.3(-0.6)+0.643又1/4+(-5又2/3)+5_百度作业帮
8道计算题,现在就要啊!15+(-20)+6+(-8)(-7)+8+3+(-6)+(-5)+93 又3/5+4又8/5+(-5又2/3)+(-1/3)(-0.5)+2又1/4+(-9又1/2)+9.75-19+28+19+(-8)9+(-7)+10+(-3)+(-9)0.36+(-7.4)+0.3(-0.6)+0.643又1/4+(-5又2/3)+5
8道计算题,现在就要啊!15+(-20)+6+(-8)(-7)+8+3+(-6)+(-5)+93 又3/5+4又8/5+(-5又2/3)+(-1/3)(-0.5)+2又1/4+(-9又1/2)+9.75-19+28+19+(-8)9+(-7)+10+(-3)+(-9)0.36+(-7.4)+0.3(-0.6)+0.643又1/4+(-5又2/3)+5又3/4+(-8又2/5)
-7216/52200-6.58-76/15
(15+6)-(20+8)=21-28=-7
(8+3+9)-(7+6+5)=20-18=2
3 又3/5+4又8/5+(-5又2/3)+(-1/3)=9又1/5-6=3又1/5=16/5
(-9.5-0.5)+(2.25+9.75)=-10+12=2
(-19+19)+(28-8)=20
(9-9)+10+(-7-3)=0+10-10=0
(0.36+0.64)-7.4-03*0.6=1-7.4-0.18=-6.58
(3又1/4+5又3/4)-17/3-42/5=135/15-85/15-126/15=-76/5
满意请点采纳~
15+(-20)+6+(-8)=15-20+6-8=-7(-7)+8+3+(-6)+(-5)+9=-7+8+3-6-5+9=23 又3/5+4又8/5+(-5又2/3)+(-1/3)=18/5+28/5-17/3-1/3=46/5-6=3又1/5(-0.5)+2又1/4+(-9又1/2)+9.75=-0.5+9/4-19/2+9.75=2-19+28+19+...
-723又1/52200-6.6-5又1/15要算式15+(-20)+6+(-8)=15+6+(-20-8)=21-28=-7(-7)+8+3+(-6)+(-5)+9=8+3+9+(-7-6-5)=20-18=23 又3/5+4又8/5+(-5又2/3)+(-1/3)=9又1/5+(-6)=3又1/5