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
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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)+9
3 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)+0.64
3又1/4+(-5又2/3)+5又3/4+(-8又2/5)
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
-7
2
16/5
2
20
0
-6.58
-76/15
15+(-20)+6+(-8)=15-20+6-8=-7
(-7)+8+3+(-6)+(-5)+9=-7+8+3-6-5+9=2
3 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+...
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15+(-20)+6+(-8)=15-20+6-8=-7
(-7)+8+3+(-6)+(-5)+9=-7+8+3-6-5+9=2
3 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+(-8)=-19+28+19-8=20
9+(-7)+10+(-3)+(-9)=9-7+10-3-9=0
0.36+(-7.4)+0.3(-0.6)+0.64=0.36-7.4-0.18+0.6-6.6
3又1/4+(-5又2/3)+5又3/4+(-8又2/5)=13/4-17/3+23/4-42/5=-76/15
收起
-7
2
3又1/5
2
20
0
-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=2
3 又3/5+4又8/5+(-5又2/3)+(-1/3)=9又1/5+(-6)=3又1/5
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-7
2
3又1/5
2
20
0
-6.6
-5又1/15
收起
1.=-7
2.=2
3.=16/5
4.=22
5.=20
6.=0
7.=-6.58
8.=-5又1/15