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初一化简求值题30道目录
求初一化简求值题计算题25道急急急急急急急急急急！！！！！！！！！！！！！！！
初一化简求值题30道
1. (2a2)3-a3(2a3)
2. (x2)3?x4÷(x3)2
3. (-a3)2?(-a2)3
4. (-2a)3+(-3a2)2
5. 7m3n-(-7m2n)
6. (-2x3y)2(-2xy2)
7. a7÷a5+(-a)4÷(-a2)
8. 4(m+1)2-7(m+1)(m-1)+3(m-1)2
9. (m/4 + 2n)(m/4 - 2n)
10. 5x2-(3b2+5x2)+2a2+4ab
11. 2(a2b+ab)-3(a2b-ab)
12. -{a3+( )}+{3a3-( )}
13. 5x2y-{x2y+5xy-6x2y}
14. 6m2n-{(-3m2n)+5m2n-(-6m2n)}
15. 5(a+b)2-2(a+b)3+(a+b)
16. 10x4-5x3+7x2-4x+4
17. (x-y)3(x-y)4-(x-y)5(y-x)2
18. 8a3b-6ab3+(-4a3b)+6ab3
19. (x+y)4(x-y)4-(x+y)6(y-x)2
20. -6ab2+9a2b+3a3b+7abc
21. (7a2b-9ab)+(-5a2b+9ab)
22. (7ab+6a)+(-5a-9ab)
23. (8a4b5-5a5b4)/4a3b
24. ((t-3)-t(t-1))/(t-3)
25. 9(t/5)/(t/9)
26. (-(7/18)n/(4/9)m/(7/4)n/(6/9)m/(9/7)n/(8/9)m/(9/8)n/(10/9)m)
27. (1/80)n/(8/9)m/(9/7)n/(8/9)m/(7/8)n/(9/8)m/(8/9)n/(9/8)m/(8/9)n/(10/9)m
28. ((x+y)/(x-y))((x-y)/(x+y))((x+y)/x)(x/(y-z)-y/(z-y))((x/y)/(y-z))((y-z)/y)((z/y)-(x-z)/(x+y))
29. (p(m+1))(n+p)/(p(mn))(p)
30. ((t/s)-(t/(s-1))((s)/t)-((s)/t)/s-(t/(s(t-(s-1)))+(s-1)/s)/(s-(s-1)/s))
1、a+(2b-3c-4d)=_________；
2、a-(-2b-3c+4d)=________；
3、(m-n)-3(z-p)=________；
4、3x-[5x-(2x-1)]=________；
5、4x2-[6x-(5x-8)-x2]=___________；
二、化简(28分)
1、(1)(3x+5y)+(5x-7y)-2(2x-4y)；
(2)5ab-{1、a+(2b-3c-4d)=
2、a-(-2b-3c+4d)=
3、(m-n)-3(z-p)=
4、3x-[5x-(2x-1)]=
5、4x2-[6x-(5x-8)-x2]=
6、(3x+5y)+(5x-7y)-2(2x-4y)；
7、5ab+[2a2b+(a2b-3ab)]-2a2b}
三、化简后求值(16分)
(2x2-x-1)-(x2-x- )+3(x2-1 ),其中x=1 。
四、1、7x-3y-4z=-(_________)；
2、a2-2ab-a-b=a2-2ab-(_________)；
3、5x3-4x2+2x-3=5x3-(_________)-3；
4、a3-a2b+ab2=-(_______)+ab2=a3-(________)；
5、5a2-6a+9b=5a2-3(_____)=-6a-(______)；
6、x3-3x2y+3xy2-y3=x3-3x2y-(_____)=x3-y3-(______)；
五、(1)(x3-4x2y+5xy2-3y3)-(-2xy2-4x3+x2y)；
(2)一个多项式减去3a4-a3+2a-1得5a4+3a2-7a+2，求这个多项式。
六、先化简下列各式，再求值(45分)
(1) x-2(x- )+3( x+ ),其中x=-4；
(2)(3xy-2x2)-(2x2-y2)-(y2-2xy)+(-y2+5x2+xy),其中x= ,y=- ；
(3)5xyz-{2x2y-[3xyz-(4xy2-x2y)]}其中x=-2,y=-1,z=3；
3.3ab-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)]=______.
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=_____
2(2a2+2ab)-(3a2+4ab-b2），其中a=2，b=-1
1/4（a+b）2-6(a-b)+3/4(a+b)2+6(a-b)
5（a-b）2-3(a-b)2-7(a-b)-(a-b)2+7(a-b)
1/2a2-1/4b+3/2a2-3/4b-a2
-5yx2+4xy2-2xy+6x2y+2xy+5
16m+25-40m+34m
(4+2x)+(2x-x)
4a+8a-(-6a)+3a-2b
8a+4(a+2)
(2n-3)+(2n+3)-(2n-3)
7x-(5x-5y)-y
3a-4b+4a-3b
7a+3b-(4a+5b)-3
3ab-4ab+8ab-7ab+ab
(x-y)-2(x-y)
.16m+25-40m+34m
.(4+2x)+(2x-x)
4a+8a-(-6a)+3a-2b
.8a+4(a+2)
(2n-3)+(2n+3)-(2n-3)
7x-(5x-5y)-y
3a-4b+4a-3b
.7a+3b-(4a+5b)-3
3ab-4ab+8ab-7ab+ab
.(x-y)-2(x-y)
x-[y-2x-(x+y)]
3ab-4ab+8ab-7ab+ab
7x-(5x-5y)-y
23a3bc2-15ab2c+8abc-24a3bc2-8abc
-7x2+6x+13x2-4x-5x2
2y+(-2y+5)-(3y+2)
(2x2-3xy+4y2)+(x2+2xy-3y2)
2a-(3a-2b+2)+(3a-4b-1)
-6x2-7x2+15x2-2x2
2x-(x+3y)-(-x-y)-(x-y)
2x+2y-[3x-2(x-y)]
5-(1-x)-1-(x-1)
10x2-xy．
x3-2x2y+4xy2+y3．
4x2-[7x2-5x-3(1-2x+x2)]
打得累死了。
。
化简求值你自己加上就可以了。
不保证刚好50道哦，能多给我几分么、？O(∩_∩)O~
3．3ab-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)]=______．
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)]=______．
初一化简求值题30道目录
求初一化简求值题计算题25道急急急急急急急急急急！！！！！！！！！！！！！！！
初一化简求值题30道
1. (2a2)3-a3(2a3)
2. (x2)3?x4÷(x3)2
3. (-a3)2?(-a2)3
4. (-2a)3+(-3a2)2
5. 7m3n-(-7m2n)
6. (-2x3y)2(-2xy2)
7. a7÷a5+(-a)4÷(-a2)
8. 4(m+1)2-7(m+1)(m-1)+3(m-1)2
9. (m/4 + 2n)(m/4 - 2n)
10. 5x2-(3b2+5x2)+2a2+4ab
11. 2(a2b+ab)-3(a2b-ab)
12. -{a3+( )}+{3a3-( )}
13. 5x2y-{x2y+5xy-6x2y}
14. 6m2n-{(-3m2n)+5m2n-(-6m2n)}
15. 5(a+b)2-2(a+b)3+(a+b)
16. 10x4-5x3+7x2-4x+4
17. (x-y)3(x-y)4-(x-y)5(y-x)2
18. 8a3b-6ab3+(-4a3b)+6ab3
19. (x+y)4(x-y)4-(x+y)6(y-x)2
20. -6ab2+9a2b+3a3b+7abc
21. (7a2b-9ab)+(-5a2b+9ab)
22. (7ab+6a)+(-5a-9ab)
23. (8a4b5-5a5b4)/4a3b
24. ((t-3)-t(t-1))/(t-3)
25. 9(t/5)/(t/9)
26. (-(7/18)n/(4/9)m/(7/4)n/(6/9)m/(9/7)n/(8/9)m/(9/8)n/(10/9)m)
27. (1/80)n/(8/9)m/(9/7)n/(8/9)m/(7/8)n/(9/8)m/(8/9)n/(9/8)m/(8/9)n/(10/9)m
28. ((x+y)/(x-y))((x-y)/(x+y))((x+y)/x)(x/(y-z)-y/(z-y))((x/y)/(y-z))((y-z)/y)((z/y)-(x-z)/(x+y))
29. (p(m+1))(n+p)/(p(mn))(p)
30. ((t/s)-(t/(s-1))((s)/t)-((s)/t)/s-(t/(s(t-(s-1)))+(s-1)/s)/(s-(s-1)/s))
1、a+(2b-3c-4d)=_________；
2、a-(-2b-3c+4d)=________；
3、(m-n)-3(z-p)=________；
4、3x-[5x-(2x-1)]=________；
5、4x2-[6x-(5x-8)-x2]=___________；
二、化简(28分)
1、(1)(3x+5y)+(5x-7y)-2(2x-4y)；
(2)5ab-{1、a+(2b-3c-4d)=
2、a-(-2b-3c+4d)=
3、(m-n)-3(z-p)=
4、3x-[5x-(2x-1)]=
5、4x2-[6x-(5x-8)-x2]=
6、(3x+5y)+(5x-7y)-2(2x-4y)；
7、5ab+[2a2b+(a2b-3ab)]-2a2b}
三、化简后求值(16分)
(2x2-x-1)-(x2-x- )+3(x2-1 ),其中x=1 。
四、1、7x-3y-4z=-(_________)；
2、a2-2ab-a-b=a2-2ab-(_________)；
3、5x3-4x2+2x-3=5x3-(_________)-3；
4、a3-a2b+ab2=-(_______)+ab2=a3-(________)；
5、5a2-6a+9b=5a2-3(_____)=-6a-(______)；
6、x3-3x2y+3xy2-y3=x3-3x2y-(_____)=x3-y3-(______)；
五、(1)(x3-4x2y+5xy2-3y3)-(-2xy2-4x3+x2y)；
(2)一个多项式减去3a4-a3+2a-1得5a4+3a2-7a+2，求这个多项式。
六、先化简下列各式，再求值(45分)
(1) x-2(x- )+3( x+ ),其中x=-4；
(2)(3xy-2x2)-(2x2-y2)-(y2-2xy)+(-y2+5x2+xy),其中x= ,y=- ；
(3)5xyz-{2x2y-[3xyz-(4xy2-x2y)]}其中x=-2,y=-1,z=3；
3.3ab-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)]=______.
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=_____
2(2a2+2ab)-(3a2+4ab-b2），其中a=2，b=-1
1/4（a+b）2-6(a-b)+3/4(a+b)2+6(a-b)
5（a-b）2-3(a-b)2-7(a-b)-(a-b)2+7(a-b)
1/2a2-1/4b+3/2a2-3/4b-a2
-5yx2+4xy2-2xy+6x2y+2xy+5
16m+25-40m+34m
(4+2x)+(2x-x)
4a+8a-(-6a)+3a-2b
8a+4(a+2)
(2n-3)+(2n+3)-(2n-3)
7x-(5x-5y)-y
3a-4b+4a-3b
7a+3b-(4a+5b)-3
3ab-4ab+8ab-7ab+ab
(x-y)-2(x-y)
.16m+25-40m+34m
.(4+2x)+(2x-x)
4a+8a-(-6a)+3a-2b
.8a+4(a+2)
(2n-3)+(2n+3)-(2n-3)
7x-(5x-5y)-y
3a-4b+4a-3b
.7a+3b-(4a+5b)-3
3ab-4ab+8ab-7ab+ab
.(x-y)-2(x-y)
x-[y-2x-(x+y)]
3ab-4ab+8ab-7ab+ab
7x-(5x-5y)-y
23a3bc2-15ab2c+8abc-24a3bc2-8abc
-7x2+6x+13x2-4x-5x2
2y+(-2y+5)-(3y+2)
(2x2-3xy+4y2)+(x2+2xy-3y2)
2a-(3a-2b+2)+(3a-4b-1)
-6x2-7x2+15x2-2x2
2x-(x+3y)-(-x-y)-(x-y)
2x+2y-[3x-2(x-y)]
5-(1-x)-1-(x-1)
10x2-xy．
x3-2x2y+4xy2+y3．
4x2-[7x2-5x-3(1-2x+x2)]
打得累死了。
。
化简求值你自己加上就可以了。
不保证刚好50道哦，能多给我几分么、？O(∩_∩)O~
3．3ab-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)]=______．
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)]=______．
