整式的加减运算200道.docx
- 文档编号:25923713
- 上传时间:2023-06-16
- 格式:DOCX
- 页数:20
- 大小:30.85KB
整式的加减运算200道.docx
《整式的加减运算200道.docx》由会员分享,可在线阅读,更多相关《整式的加减运算200道.docx(20页珍藏版)》请在冰豆网上搜索。
整式的加减运算200道
整式的加减专项练习200题
1、3(a+5b)-2(b-a)
2、3a-(2b-a)+b
3、2(2a2+9b)+3(-5a2-4b)
4、(x3-2y3-3x2y)-(3x3-3y3-7x2y)
5、3x2-[7x-(4x-3)-2x2]
6、(2xy-y)-(-y+yx)
7、5(a2b-3ab2)-2(a2b-7ab)
8、(-2ab+3a)-2(2a-b)+2ab
9、(7m2n-5mn)-(4m2n-5mn)
10、(5a2+2a-1)-4(3-8a+2a2).
11、-3x2y+3xy2+2x2y-2xy2;
12、2(a-1)-(2a-3)+3.
13、-2(ab-3a2)-[2b2-(5ab+a2)+2ab]
14、(x2-xy+y)-3(x2+xy-2y)
15、3x2-[7x-(4x-3)-2x2]
16、a2b-[2(a2b-2a2c)-(2bc+a2c)];
17、-2y3+(3xy2-x2y)-2(xy2-y3).
18、2(2x-3y)-(3x+2y+1)
19、-(3a2-4ab)+[a2-2(2a+2ab)].
20、5m-7n-8p+5n-9m-p;
21、(5x2y-7xy2)-(xy2-3x2y);
22、3(-3a2-2a)-[a2-2(5a-4a2+1)-3a].
23、3a2-9a+5-(-7a2+10a-5);
24、-3a2b-(2ab2-a2b)-(2a2b+4ab2).
25、(5a-3a2+1)-(4a3-3a2);
26、-2(ab-3a2)-[2b2-(5ab+a2)+2ab]
27、(8xy-x2+y2)+(-y2+x2-8xy);
28、(2x2-
+3x)-4(x-x2+
)
29、3x2-[7x-(4x-3)-2x2].
30、5a+(4b-3a)-(-3a+b);
31、(3a2-3ab+2b2)+(a2+2ab-2b2);
32、2a2b+2ab2-[2(a2b-1)+2ab2+2].
33、(2a2-1+2a)-3(a-1+a2);
34、2(x2-xy)-3(2x2-3xy)-2[x2-(2x2-xy+y2)].
35、-
ab+
a2b+ab+(-
a2b)-1
36、(8xy-x2+y2)+(-y2+x2-8xy);
37、2x-(3x-2y+3)-(5y-2);
38、-(3a+2b)+(4a-3b+1)-(2a-b-3)
39、4x3-(-6x3)+(-9x3)
40、3-2xy+2yx2+6xy-4x2y
41、1-3(2ab+a)十[1-2(2a-3ab)].
42、3x-[5x+(3x-2)];
43、(3a2b-ab2)-(ab2+3a2b)
44、
45、(-x2+5+4x3)+(-x3+5x-4)
46、(5a2-2a+3)-(1-2a+a2)+3(-1+3a-a2).
47、5(3a2b-ab2)-4(-ab2+3a2b).
48、4a2+2(3ab-2a2)-(7ab-1).
49、
xy+(-
xy)-2xy2-(-3y2x)
50、5a2-[a2-(5a2-2a)-2(a2-3a)]
51、5m-7n-8p+5n-9m+8p
52、(5x2y-7xy2)-(xy2-3x2y)
53、3x2y-[2x2y-3(2xy-x2y)-xy]
54、3x2-[5x-4(
x2-1)]+5x2
55、2a3b-
a3b-a2b+
a2b-ab2;
56、(a2+4ab-4b2)-3(a2+b2)-7(b2-ab).
57、a2+2a3+(-2a3)+(-3a3)+3a2;
58、5ab+(-4a2b2)+8ab2-(-3ab)+(-a2b)+4a2b2;
59、(7y-3z)-(8y-5z);
60、-3(2x2-xy)+4(x2+xy-6).
61、(x3+3x2y-5xy2+9y3)+(-2y3+2xy2+x2y-2x3)-(4x2y-x3-3xy2+7y3)
62、-3x2y+2x2y+3xy2-2xy2;
63、3(a2-2ab)-2(-3ab+b2);
64、5abc-{2a2b-[3abc-(4a2b-ab2]}.
65、5m2-[m2+(5m2-2m)-2(m2-3m)].
66、-[2m-3(m-n+1)-2]-1.
67、
a-(
a-4b-6c)+3(-2c+2b)-5an-an-(-7an)+(-3an)
69、x2y-3xy2+2yx2-y2x
70、
a2b-0.4ab2-
a2b+
ab2;
71、3a-{2c-[6a-(c-b)+c+(a+8b-6)]}
72、-3(xy-2x2)-[y2-(5xy-4x2)+2xy];
73、化简、求值
x2--
(-
x2+
y2),其中x=-2,y=-
74、化简、求值
x-2(x-
y2)+(-
x+
y2),其中x=-2,y=-
.
75、
其中x=-1
;
76、化简,求值(4m+n)-[1-(m-4n)],m=
n=-1
77、化简、求值2(a2b+2b3-ab3)+3a3-(2ba2-3ab2+3a3)-4b3,其中a=-3,b=2
78、化简,求值:
(2x3-xyz)-2(x3-y3+xyz)+(xyz-2y3),其中x=1,y=2,z=-3.
79、化简,求值:
5x2-[3x-2(2x-3)+7x2],其中x=-2.
80、若两个多项式的和是2x2+xy+3y2,一个加式是x2-xy,求另一个加式.
81、若2a2-4ab+b2及一个多项式的差是-3a2+2ab-5b2,试求这个多项式.
82、求5x2y-2x2y及-2xy2+4x2y的和.
83、求3x2+x-5及4-x+7x2的差.
84、计算5y+3x+5z
及12y+7x-3z
的和
85、计算8xy
+3x
y-2及-2x
y+5xy
-3的差
86、多项式-x
+3xy-
y及多项式M的差是-
x2-xy+y,求多项式M
87、当x=-
,y=-3时,求代数式3(x2-2xy)-[3x2-2y+2(xy+y)]的值.
88、化简再求值5abc-{2a
b-[3abc-(4ab
-a
b)]-2ab
},其中a=-2,b=3,c=-
89、已知A=a
-2ab+b
,B=a
+2ab+b
(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,他误将A+B看作A-B,求得9x2-2x+7,若B=x2+3x-2,你能否帮助小明同学求得正确答案?
91、已知:
M=3x2+2x-1,N=-x2-2+3x,求M-2N.
92、已知
,求3A-B
93、已知A=x2+xy+y2,B=-3xy-x2,求2A-3B.
94、已知
+(b+1)2=0,求5ab2-[2a2b-(4ab2-2a2b)]的值.
95、化简求值:
5abc-2a2b+[3abc-2(4ab2-a2b)],其中a、b、c满足|a-1|+|b-2|+c2=0.
96、已知a,b,z满足:
(1)已知|x-2|+(y+3)2=0,
(2)z是最大的负整数,化简求值:
2(x2y+xyz)-3(x2y-xyz)-4x2y.
97、已知a+b=7,ab=10,求代数式(5ab+4a+7b)+(6a-3ab)-(4ab-3b)的值.
98、已知m2+3mn=5,求5m2-[+5m2-(2m2-mn)-7mn-5]的值
99、设A=2x2-3xy+y2+2x+2y,B=4x2-6xy+2y2-3x-y,若|x-2a|+(y-3)
=0,且B-2A=a,求a的值.
100、有两个多项式:
A=2a2-4a+1,B=2(a2-2a)+3,当a取任意有理数时,请比较A及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及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)]=______.
35.化简|1-x+y|-|x-y|(其中x<0,y>0)等于______.
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).
75.(x2-2y2-z2)-(-y2+3x2-z2)+(5x2-y2+2z2).
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).
87.2m-{-3n+[-4m-(3m-n)]}.
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).
99.(x+1)(x-1)-x2.
100.(3y-1)(3y+1)-(2y+2)(2y-2).
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 整式 加减 运算 200
![提示](https://static.bdocx.com/images/bang_tan.gif)