1 (-23)-(-5)+(-64)-(12)2 (2/3)-1又2/5+4/3+2/5-33 |x|=1 则x与-3的差为多少?4 (-9)*2/35 (-1.5)*(-1.5)6 (-14)*(-100)*(-6)*(-0.01)7 (1/2--5/9+5/6)*(-36)8 1/(1又1/6-8又3/4*2/7)+14/27/7/189 (2又1/3-3又1/2+1
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1 (-23)-(-5)+(-64)-(12)2 (2/3)-1又2/5+4/3+2/5-33 |x|=1 则x与-3的差为多少?4 (-9)*2/35 (-1.5)*(-1.5)6 (-14)*(-100)*(-6)*(-0.01)7 (1/2--5/9+5/6)*(-36)8 1/(1又1/6-8又3/4*2/7)+14/27/7/189 (2又1/3-3又1/2+1
1 (-23)-(-5)+(-64)-(12)
2 (2/3)-1又2/5+4/3+2/5-3
3 |x|=1 则x与-3的差为多少?
4 (-9)*2/3
5 (-1.5)*(-1.5)
6 (-14)*(-100)*(-6)*(-0.01)
7 (1/2--5/9+5/6)*(-36)
8 1/(1又1/6-8又3/4*2/7)+14/27/7/18
9 (2又1/3-3又1/2+1又4/45)/(-1又1/6)
要正确的,分数我不在乎!
注意;上面的都不是了,
1.(-12)/[-(-3)+(-15)]/5
2.-3-{-5+(1-0.2/3/5)/(-2)}
3.12/(2+3)
4.(-1)/(-5)*(-1/5)
5.24/(1/3/1/4)
6.(-2)*(-3)*(-1/2)*(+1/3)
1 (-23)-(-5)+(-64)-(12)2 (2/3)-1又2/5+4/3+2/5-33 |x|=1 则x与-3的差为多少?4 (-9)*2/35 (-1.5)*(-1.5)6 (-14)*(-100)*(-6)*(-0.01)7 (1/2--5/9+5/6)*(-36)8 1/(1又1/6-8又3/4*2/7)+14/27/7/189 (2又1/3-3又1/2+1
1 (-23)-(-5)+(-64)-(12)
=-23+5-64-12
=-94
2 (2/3)-1又2/5+4/3+2/5-3
=2/3-7/5+4/3+2/5-3
=(2/3+4/3)+(-7/5+2/5)-3
=2-1-3
=-4
3 |x|=1 则x与-3的差为多少?
X可能是1或-1
当X=1,X-(-3)=1+3=4
当X=-1,X-(-3)=-1+3=2
4 (-9)*2/3
=-6
5 (-1.5)*(-1.5)
=2.25
6 (-14)*(-100)*(-6)*(-0.01)
=14*6*100*0.01
=84
7 (1/2--5/9+5/6)*(-36)
=-36/2+5*36/9-5*36/6
=-18+20-30
=-28
8 1/(1又1/6-8又3/4*2/7)+14/27/7/18
先算括号里的
1又1/6-8又3/4*2/7=(7/6)-(35/4)*2/7=-4/3
上式=1/(-4/3)+4/3
=(-3/4)+(4/3)
=7/12
9 (2又1/3-3又1/2+1又4/45)/(-1又1/6)
=〔(7/3)-(7/2)+(49/45)〕/(-7/6)
=(-7/90)*(-7/6)
=49/540