人教版七年级数学上册整式的加减法练习题精选18Word文档格式.docx
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人教版七年级数学上册整式的加减法练习题精选18Word文档格式.docx
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x2y+9x2y20b2+12.5b2
—a2bc+—cba2-a2b+0.4a2b
-—ab+—ab-310x3y2+6.5x3y2
46
ab+8a2b2+1+7ab2-8a2b2-9-9ab
5x3+4x2-3y2+y-9x2-9y+y2
(6a2b+9b3)+(a2b2+b3)
(-x2y-9xy2)-(x2y-4xy2)
-4b2-[5b2+(6b2+2b)-3(b2+7b)]
18-7(1-a)-(1-a-a2)+4(1-a+a2-a3)
(a2b+5ab)-(a2b-8ab)
(3t2-3t-5)+(5t2+2t-6)
(9x2+5x-3)+5(7-3x-9x2)
x2y-5x2y100y2+3.5y2
—a2bc+—cba2a2b-0.6a2b
—pq+—pq+5-10x2y-4.5x2y
62
8ab-9a2b2+1-4ab2-9a2b2+7-5ab
9x3-9x2+7y2+y-2x2+y-y2
(a2b+3b3)+(-a2b2-b3)
(8x2y-3xy2)-(x2y+3xy2)
7x2-[-8x2-(6x2+3x)+7(x2-2x)]
4+2(1-a)-(1-a-a2)+3(1-a+a2-a3)
(4a2b+4ab)+(a2b+4ab)
(2x2+5x+4)-(6x2+5x-7)
(2n2+5n+8)-3(7-4n+8n2)
-x2y-7x2y-100z2-15.5z2
—a2bc-—cba28a2b-0.8a2b
24
—st-—st-3-4ab2-8.5ab2
34
6ab+2a2b2+9+4ab2-3a2b2-3+9ab
5x3-9x2+y2+7y+9x2-3y+y2
(-a2b-b3)-(-7a2b2-b3)
(x2y-xy2)+(x2y+xy2)
3c2-[-8c2+(3c2-2c)-7(c2-6c)]
5-3(1-a)+(1-a-a2)-3(1-a+a2-a3)
(7a2b+ab)-(-a2b-4ab)
(7b2-3b+3)-(4b2+6b+3)
(4z2+6z-3)+4(8-2z-7z2)
x2y-3x2y60n2-0.5n2
-—a2bc+—cba2-2a2b+0.2a2b
—st+—st-46a2b2-7.5a2b2
43
2ab+8a2b2+4-5ab2+9a2b2+7-7ab
4x3-8x2+7y2+y-x2-y+8y2
(8a2b-b3)-(a2b2-b3)
(6x2y+xy2)-(5x2y+3xy2)
-5y2-[7y2+(5y2+7y)-4(y2-4y)]
4-9(1-a)-(1-a-a2)+2(1-a+a2-a3)
(-8a2b+5ab)+(8a2b-4ab)
(6c2+5c+2)-(9c2+4c-6)
(7s2+6s+1)+5(2+5s+5s2)
-4x2y+2x2y-30s2-0.5s2
-—a2bc+—cba26a2b-0.6a2b
33
-—ab-—ab+43x2y-3.5x2y
55
9ab+9a2b2-8+8ab2+8a2b2-6-4ab
8x3+7x2-6y2+5y-x2-2y-y2
(-a2b+7b3)-(-2a2b2-6b3)
(-9x2y+xy2)-(x2y-9xy2)
-3y2+[5y2+(8y2+2y)-6(y2-8y)]
12+5(1-a)+(1-a-a2)-3(1-a+a2-a3)
(a2b-8ab)+(a2b-6ab)
(4s2+6s-1)-(8s2+5s-6)
(9t2-6t-9)-5(6+2t+9t2)
x2y-9x2y70t2-3.5t2
—a2bc+—cba2-a2b-0.5a2b
22
—pq-—pq+3-6x3y2-7.5x3y2
9ab+2a2b2+1-8ab2-8a2b2+1+3ab
6x3+9x2+y2+y+6x2+y-y2
(5a2b+b3)-(-a2b2-4b3)
(-x2y+xy2)-(9x2y+xy2)
-5x2+[-8x2-(4x2+4x)+7(x2+9x)]
14+6(1-a)-(1-a-a2)-4(1-a+a2-a3)
(a2b+7ab)-(-6a2b+9ab)
(2t2-6t-9)+(9t2-2t+2)
(2s2+5s-3)-2(7+5s-2s2)
x2y-3x2y30s2-5.5s2
—a2bc-—cba2a2b-0.6a2b
32
—pq-—pq+92a3b+0.5a3b
ab+7a2b2+4+3ab2-2a2b2+5+5ab
3x3-3x2-y2+7y+x2-6y-2y2
(a2b+b3)+(-a2b2+b3)
(x2y+9xy2)+(x2y+6xy2)
-3t2+[-5t2-(9t2-9t)+8(t2-3t)]
2+8(1-a)-(1-a-a2)+5(1-a+a2-a3)
(2a2b-ab)-(-5a2b-6ab)
(8m2-6m-9)+(4m2+6m+6)
(5c2-6c+5)+2(6-6c-8c2)
x2y+5x2y-50x2+4.5x2
—a2bc-—cba2-a2b-0.7a2b
53
-—mn+—mn-9-5x2y-5.5x2y
3ab-3a2b2-6+5ab2-6a2b2-6+2ab
2x3+8x2+6y2-5y+4x2+y+5y2
(a2b+7b3)+(-a2b2-b3)
(-x2y+xy2)+(5x2y+7xy2)
-3c2-[7c2-(9c2-3c)+7(c2-7c)]
17-3(1-a)-(1-a-a2)+5(1-a+a2-a3)
(4a2b+ab)+(3a2b+ab)
(2c2-3c+1)+(4c2-5c+3)
(9x2+3x-8)+4(8-6x+5x2)
-2x2y-7x2y40s2-10.5s2
—a2bc-—cba2a2b+0.7a2b
26
-—mn+—mn+5-2x2y+8.5x2y
ab-7a2b2+2+9ab2+7a2b2-8+6ab
5x3-3x2-y2+9y-4x2-3y-2y2
(6a2b-b3)-(-2a2b2-3b3)
(x2y-xy2)-(2x2y-xy2)
-2c2+[-3c2+(6c2+5c)+4(c2+4c)]
19-7(1-a)-(1-a-a2)+3(1-a+a2-a3)
(-5a2b+4ab)-(a2b-ab)
(2n2+4n-9)+(8n2+5n+6)
(9y2-5y-7)+5(9+2y-7y2)
-7x2y+9x2y90c2+8.5c2
-—a2bc-—cba2-2a2b+0.3a2b
44
-—ab+—ab+10-9x2y2+6.5x2y2
42
9ab+5a2b2-5-2ab2-4a2b2-9-5ab
3x3+8x2-y2+9y-x2-y-3y2
(-6a2b-b3)+(4a2b2+6b3)
(-x2y+xy2)-(x2y-2xy2)
8b2+[-8b2-(7b2+5b)-9(b2-3b)]
8+7(1-a)-(1-a-a2)+3(1-a+a2-a3)
(-8a2b-ab)+(5a2b+4ab)
(9b2+3b+4)-(2b2-3b+5)
(2x2-5x-3)+4(7+3x+5x2)
-3x2y+2x2y-60s2-19.5s2
-—a2bc+—cba2-9a2b+0.9a2b
63
-—mn-—mn-1-7a2b2-8.5a2b2
45
ab-4a2b2+1+4ab2+7a2b2+4+7ab
2x3+2x2-3y2-y+x2+8y-4y2
(-a2b-b3)-(-7a2b2+b3)
(-2x2y-5xy2)-(x2y+2xy2)
5s2-[9s2+(2s2-6s)-2(s2-7s)]
8-9(1-a)-(1-a-a2)-2(1-a+a2-a3)
(-a2b+ab)+(-a2b-ab)
(7c2+5c+9)-(2c2+3c+7)
(7y2-5y+8)+3(2+5y-9y2)
8x2y-2x2y-80x2+13.5x2
-—a2bc-—cba28a2b-0.7a2b
-—pq-—pq+1-8a3b+0.5a3b
ab+9a2b2-2-6ab2-6a2b2+6-9ab
5x3+2x2-y2+7y+3x2+y-2y2
(6a2b+b3)+(a2b2+9b3)
(-x2y+xy2)+(x2y+xy2)
2m2+[-4m2-(3m2-6m)-7(m2-2m)]
20-6(1-a)+(1-a-a2)-5(1-a+a2-a3)
(a2b+ab)+(-a2b-ab)
(5c2-2c-3)-(8c2-3c+6)
(8x2+5x+6)-3(4+5x-5x2)
-x2y+5x2y40n2+5.5n2
52
-—pq+—pq-73x3y2+1.5x3y2
4
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- 人教版 七年 级数 上册 整式 加减法 练习题 精选 18