完整版整式的加减运算200道Word下载.docx
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20、5m-7n-8p+5n-9m-p;
2222y);
xy-、(215xy-7xy)(-3x
222+1)-3a].-2((22、3-3a5a-4a-2a)-[a
22+10a-5);
-9a+5-(-7a23、3a
22222).2ab+4ab-a(b)-24、-3a(b-2ab
232);
-3a(+1)-4a25、(5a-3a
222)5ab+a-[2b+2ab]-(26、-2(ab-3a)
2222-8xy);
x-+xxy、27(8-+y)(y+
22++x)--4(-xx3、28(2x)
22x--(4xx、293-[7-x3)2].
304b-3a5a+、(-3a+b-)();
31、(3a2-3ab+2b2)+(a2+2ab-2b2);
32、2a2b+2ab2-[2(a2b-1)+2ab2+2].
22);
(a-1+a、(2a-1+2a)-333
22222)].()()(、342x-xy-32x-3xy-2[x-2x-xy+y
35、-ab+
2-ab+(ab+21-)ba
2222-8xy)y;
+x(8xy-x+y)+(-36、
37、2x-(3x-2y+3)-(5y-2);
38、-(3a+2b)+(4a-3b+1)-(2a-b-3)
333)x-x9)+(39、4x-(-6
22y46xy-xyx+2340、-xy2+
、.)]ab3-a2(2-[1十)a+ab3(2-141.
42、3x-[5x+(3x-2)];
2222babbaaba)+-3)-(43、(3
、44
32345x)+(-x+5-4)x+x(、-+54
22246).-1+3a-a(+3)1-2a+a(-)-2a+35a、(.
2222b).(-4-ab547、(3ab-ab+3a)
22)-(7ab-1).3ab-2a4a48、+2(
xy+、49.
22()-3y-(xy-)-2xyx
222250-2(-3a)a5a]-[a、-(5a-2a)
51+8p、5m-7n-8p+5n-9m
222252)y(5xy-7xy)-xy、(-3x
22253-xy]
)、y2xy-x(y-3y-[2x3x
222x、543x-[5x-4(-1)]+5x
233b+
b-aab-2a、55.
22;
ab-ab
22222-ab).b+b)56、(a-7+4ab-4b)-3(a(
23332;
-3a)(+-2a+3a)+(57、a+2a
222222;
b+)(-ab)+4a-3ab+8ab(、585ab+-4ab)-(
59、(7y-3z)-(8y-5z);
22+xy-6).x-xy)+4(60、-3(2x
32233223)+2xyy-2x+9y+x)+(-2y61、(x-+3xy-5xy2323)+7y-3xy(4xy-x
y+3xy62、-3xy+2x-2xy
(a-3ab+b-2ab)-263、3(
222]}.4ab-ab64、5abc-{2ab-[3abc-(
2222-3m)]m.、5m-[m5m+(-2-2m)(65
66、-[2m-3(m-n+1)-2]-1.
、67.
a-(
nn--a-5aa-4b-6c)+3(-2c+2b)nn)((-7a)+-3a
2222x+2yxx、69y-3xy-y
22-
b-0.4ab、a702b+
a2;
ab
71、3a-{2c-[6a-(c-b)+c+(a+8b-6)]}
222)+2xy];
-(5xy-4x-[y(、72-3xy-2x)
2-73、化简、求值x-
(-2+x2=-y,2=-x,其中)y
-x2(-x、化简、求值74.
2)+(-yx+2=-y,2=-x,其中)y
.
=-x其中、75.
1;
4m+n)-[1-(化简,求值(、76m-4n)],m=
n=-1
2333223)a+ba3-2+bab-ab3)+a3-a77、化简、求值2((2b3,其中a=-3,b=2-4b
3333),(xyz-2y-y+xyz)+x、化简,求值:
78(2x-xyz)-2(z=-3.x=1其中,y=2,
22x=-2+7x2x-35x79、化简,求值:
-[3x-2()],其中.
222-xy,,一个加式是80、若两个多项式的和是2xx+xy+3y求另一个加式.
2222,试求这+2ab-5b-4ab+b-3a与一个多项式的差是81、若2a个多项式.
2222y的和.x2xy+4x82、求52y-x与-y
22的差.x+-与-x求、833+x54x7
84、计算5y+3x+5z与12y+7x-3z的和
、计算85.
8xy+3xy-2与y+5xy-2x
-3的差
多项式86、
+3xy--x
y与多项式M的差是2-xy+y,求多项式-M
x
87、当x=-,y=-3时,求代22-2y+2(xy+y)-[3x-2xy)]的值.x3数式(
88、化简再求值b-[3abc-5abc-{2a
4ab-a(]-2abb)},b=3,a=-2中其,
c=-
、已知89-2ab+bA=a
,+2ab+bB=a
(1)求A+B;
(2)求(B-A);
90、小明同学做一道题,已知两个多项式A,B,计算A+B,22+3x-2B=x9x,-2x+7,若A-B他误将A+B看作,求得你能否帮助小明同学求得正确答案?
22-2+3x,求M-2N.N=-xM=3x91、已知:
+2x-1,
92、已知,求3A-B
222.3B-2A,求x-xy+xA93、已知=+xyy,3=-B
22ab50,b已知+1)求=(+、94222的值.a)](4b-abb-2a-[2
222b)],其中a、b95、化简求值:
5abc-2ab+[3abc-2(4ab、-a2=0.c满足|a-1|+|b-2|+c
2=0,
(2))z(满足:
(,96、已知ab,z1)已知|x-2|+y+3
是最大的负整数,化简求值:
222.y-4x)y-xyzx(-3)y+xyzx(2
97、已知a+b=7,ab=10,求代数式(5ab+4a+7b)+(6a-3ab)-(4ab-3b)的值.
2222-mn)-7mn-5](2m的值、已知98m,+3mn=5求5m-[+5m-
2222|x-2a|+若,-3x-y-6xy+2yB=4x,+2x+2y-3xy+yA=2x设、99.
(y-3)=0,且B-2A=a,的值.求a
22-2a)+3,当2(1=A2a-4a+,B=a、有两个多项式:
100a取任意有理数时,请比较A与B的大小.
1.(3x-5y)-(6x+7y)+(9x-2y)
2.2a-[3b-5a-(3a-5b)]
3.ab-4ab+8ab-7ab+ab=______.
4.7x-(5x-5y)-y=______.
5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______.
6.-7x2+6x+13x2-4x-5x2=______.
7.2y+(-2y+5)-(3y+2)=______.
11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______.
12.2a-(3a-2b+2)+(3a-4b-1)=______.
13.-6x2-7x2+15x2-2x2=______.
14.2x-(x+3y)-(-x-y)-(x-y)=______.
16.2x+2y-[3x-2(x-y)]=______.
17.5-(1-x)-1-(x-1)=______.
18.()+(4xy+7x2-y2)=10x2-xy.
19.(4xy2-2x2y)-()=x3-2x2y+4xy2+y3.
21.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A+B=______.
22.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A-B=______.
23.若a=-0.2,b=0.5,代数式-(|a2b|-|ab2|)的值为______.
25.一个多项式减去3m4-m3-2m+5得-2m4-3m3-2m2-1,那么这个多项式等于______.
26.-(2x2-y2)-[2y2-(x2+2xy)]=______.
27.若-3a3b2与5ax-1by+2是同类项,则x=______,y=______.
28.(-y+6+3y4-y3)-(2y2-3y3+y4-7)=______.
29.化简代数式4x2-[7x2-5x-3(1-2x+x2)]的结果是______.
30.2a-b2+c-d3=2a+()-d3=2a-d3-()=c-().
31.3a-(2a-3b)+3(a-2b)-b=______.
32.化简代数式x-[y-2x-(x+y)]等于______.
33.[5a2+()a-7]+[()a2-4a+()]=a2+2a+1.
34.3x-[y-(2x+y)]=______.
于等0)>0,y<x中其|1-x+y|-|x-y|(简化.35.
______.
36.已知x≤y,x+y-|x-y|=______.
37.已知x<0,y<0,化简|x+y|-|5-x-y|=______.
38.4a2n-an-(3an-2a2n)=______.
39.若一个多项式加上-3x2y+2x2-3xy-4得
2x2y+3xy2-x2+2xy,
则这个多项式为______.
40.-5xm-xm-(-7xm)+(-3xm)=______.
41.当a=-1,b=-2时,
[a-(b-c)]-[-b-(-c-a)]=______.
43.当a=-1,b=1,c=-1时,
-[b-2(-5a)]-(-3b+5c)=______.
44.-2(3x+z)-(-6x)+(-5y+3z)=______.
45.-5an-an+1-(-7an+1)+(-3an)=______.
46.3a-(2a-4b-6c)+3(-2c+2b)=______.
48.9a2+[7a2-2a-(-a2+3a)]=______.
50
当2y-x=5时,5(x-2y)2-3(-x+2y)-100=______.
51.(4x2-8x+5)-(x3+3x2-6x+2).
52.(4x2-8x+5)-(x3+3x2-6x+2).
53.{-[-(a+b)]}-{-[-(a-b)]}.
54.-[-(-x)-y]-[+(-y)-(+x)].
55.(-7y2)+(-4y)-(-y2)-(+5y)+(-8y2)+(+3y).
56.5m2n+5mn2-mn+3m2n-6mn2-8mn.
57.(m+1)-(-n+m);
58.4m-[5m-(2m-1)].
59.2x2-{-3x-[4x2-(3x2-x)+(x-x2)]}.
60.-(7x-y-2z)-{[4x-(x-y-z)-3x+z]-x}.
61.(+3a)+(-5a)+(-7a)+(-31a)-(+4a)-(-8a).
62.a3-(a2-a)+(a2-a+1)-(1-a4+a3).
63.x2-8x+2x3-13x2-2x-2x3+3
64.4x2-3[x+4(1-x)-x2]-2(4x2-1)
65.(-x+5+2x4-6x3)-(3x4+2x2-3x3-7).
66.在括号内填上适当的项x2-xy+y-1=x2-();
67.[()+6x-7]-[4x2+()-()]=x2-2x+1.
68.(-x+y+z)(x+y-z)=[y-()][y+()].
69.[()-9y+()]+2y2+3y-4=11y2-()+13.
70.-1.56a+3.2a3-0.47,2.27a3-0.02a2+4.03a+0.53求两代数式的差
71.求两代数式6-0.15a+3.24a2+5.07a3的和.
72.(0.3x3-x2y+xy2-y3)-(-0.5x3-x2y+0.3xy2).
73.-{2a2b-[3abc-(4ab2-a2b)]}.
74.(5a2b+3a2b2-ab2)-(-2ab2+3a2b2+a2b).
.(x2-2y2-z2)-(-y2+3x2-z2)+(5x2-y2+2z2).75.
76.(3a6-a4+2a5-4a3-1)-(2-a+a3-a5-a4).
77.(4a-2b-c)-5a-[8b-2c-(a+b)].
78.(2m-3n)-(3m-2n)+(5n+m).
79.(3a2-4ab-5b2)-(2b2-5a2+2ab)-(-6ab).
80.xy-(2xy-3z)+(3xy-4z).
81.(-3x3+2x2-5x+1)-(5-6x-x2+x3).
83.3x-(2x-4y-6x)+3(-2z+2y).
84.(-x2+4+3x4-x3)-(x2+2x-x4-5).
85.若A=5a2-2ab+3b2,B=-2b2+3ab-a2,计算A+B.
86.已知A=3a2-5a-12,B=2a2+3a-4,求2(A-B).
}.2m-{-3n+[-4m-(3m-n)].87.
88.5m2n+(-2m2n)+2mn2-(+m2n).
89.4(x-y+z)-2(x+y-z)-3(-x-y-z).
90.2(x2-2xy+y2-3)+(-x2+y2)-(x2+2xy+y2).
92.2(a2-ab-b2)-3(4a-2b)+2(7a2-4ab+b2).
93.2x2-{-3x-[4x2-(3x2-x)+(x-x2)]}.
94:
-(7x-y-2z)-{[4x-(x-y-z)-3x+z]-x}.
95:
(+3a)+(-5a)+(-7a)+(-31a)-(+4a)-(-8a).
96:
a3-(a2-a)+(a2-a+1)-(1-a4+a3).
97.4x-2(x-3)-3[x-3(4-2x)+8].
98.(4y-3x)(3x+4y).
x2.
-1)-99.(x+1)(x
100.(3y-1)(3y+1)-(2y+2)(2y-2).