七年级数学上册计算题专项练习 (331)

b2-(2a2-3b2)+5b2

x7x+(5x-2)-(4-1)

-5(ab-4a2)+(3ab-3a2)

12a2-2(2ab+3a2)-4ab

-3(b-2)+5(-b-3)

1113(x2-y)+2(x-y2)-2(x2-y2)

11-(-3x+3y)+(5x-2y)

(2s+3)+4(s2+s-5)

11-2(a2b+2ab2+2a3)+(-2a2b-3ab2)

13n-3(3mn+2m2+2n2)-(-5mn-4m2-52)

11(2a3-3a2b+1)-3(a2b+1)

111111-2(4x3+4y3-4)-2(2x3-3y3-6)

6b2-(3a2+b2)+6b2

x4x+(x-4)-(2-5)

-(ab+2a2)+(4ab-2a2)

15a2+3(4ab-6a2)-5ab

-2(b+1)+5(-b+2)

1114(x2-y)-4(x-y2)-6(x2-y2)

11-(-4x+4y)+(2x-4y)

(3s+1)-2(s2-s+3)

11-(a2b-2ab2+3a3)-(-2a2b+2ab2)

13n-3(3mn-3m2+3n2)+(-5mn+4m2+52)

11(3a3-2a2b-1)+2(a2b-6)

111111-2(4x3-3y3+2)-3(4x3+4y3+4)

5b2-(5a2+2b2)+b2

x2x+(2x-5)-(5-3)

-4(ab-3a2)-(6ab-2a2)

14a2+3(ab-2a2)-ab

-3(b+4)+2(-b+4)

1112(x2-y)+2(x-y2)-6(x2+y2)

11-(-3x+4y)+(3x-3y)

(2s-1)-4(s2-s-4)

11-3(a2b-4ab2-4a3)-(-4a2b-3ab2)

13n-4(4mn-3m2-3n2)+(-2mn-5m2-22)

11(2a3+3a2b-5)+5(a2b+2)

111111-2(4x3-2y3-4)-4(3x3+4y3+6)

6b2-(a2-b2)-b2

x7x+(4x-1)-(3-3)

-(ab-a2)-(2ab-4a2)

14a2-2(3ab+6a2)-ab

-(b-2)+5(-b+3)

1112(x2-y)-3(x-y2)+4(x2+y2)

11-(-4x+4y)-(3x-2y)

(6s-3)+2(s2-s+5)

11-4(a2b-3ab2+4a3)-(-4a2b+3ab2)

13n-2(4mn-5m2+3n2)+(-5mn-5m2-52)

11(a3-4a2b-4)-4(a2b-5)

111111-3(4x3+2y3-3)-2(3x3-3y3+5)

9b2-(a2-6b2)+4b2

x5x+(4x-4)-(3+1)

-3(ab+2a2)-(4ab-2a2)

12a2-3(3ab+4a2)-3ab

-4(b+2)+2(-b+4)

1115(x2-y)-2(x-y2)-5(x2+y2)

11-(-3x+y)+(6x-2y)

(4s+1)+2(s2-s+4)

11-4(a2b-4ab2+2a3)-(-4a2b+2ab2)

13n-4(2mn+2m2-5n2)-(-2mn-3m2-22)

11(4a3+4a2b+2)-4(a2b-5)

111111-4(3x3+3y3+4)+4(3x3+3y3-4)

7b2-(a2-b2)+5b2

x2x+(2x-7)-(6+5)

-4(ab-3a2)+(3ab-3a2)

12a2-2(3ab+4a2)-5ab

-4(b-4)+2(-b-2)

1116(x2-y)-6(x-y2)-5(x2+y2)

11-(-2x+3y)-(2x-y)

(5s-2)+4(s2-s-4)

11-2(a2b-2ab2+2a3)+(-3a2b-2ab2)

13n-4(5mn+5m2-2n2)+(-5mn+5m2-42)

11(2a3+4a2b-1)-4(a2b-3)

111111-3(3x3-2y3-3)+4(4x3+3y3+6)

9b2-(a2+6b2)-b2

x8x+(5x-8)-(2+5)

-(ab+2a2)-(4ab-2a2)

14a2+3(ab+4a2)-4ab

-3(b-2)+3(-b-2)

1115(x2-y)+4(x-y2)-4(x2-y2)

11-(-3x+y)-(6x-3y)

(2s+3)-2(s2-s+2)

11-(a2b-4ab2+2a3)+(-4a2b-2ab2)

13n-4(2mn+2m2-2n2)+(-4mn+5m2+52)

11(3a3-5a2b-4)+4(a2b+5)

111111-3(2x3-4y3-4)+2(3x3-3y3+5)