初一数学上册合并同类项专项练习题66.docx
《初一数学上册合并同类项专项练习题66.docx》由会员分享,可在线阅读,更多相关《初一数学上册合并同类项专项练习题66.docx(6页珍藏版)》请在冰豆网上搜索。
![初一数学上册合并同类项专项练习题66.docx](https://file1.bdocx.com/fileroot1/2023-1/31/b5506ad7-d2e5-4daf-ae7e-961e1d942339/b5506ad7-d2e5-4daf-ae7e-961e1d9423391.gif)
初一数学上册合并同类项专项练习题66
3e-8e-5e2m-4c-6m-2c
4a-4d+9a+18d-20a-11d6mn+18mn+18mn-mn
8x2y+7y2z-2x2y+3y2z9n-8n2-9n-6n2-6
4675
—z+—t-—t+—z10t2+8ab+2t2-6
5757
4
—pq-8x+3pq5ab-8x2y-7ab+11ab
5
3e+6e+9e9m+5a+3m+6a
6a+9n-8a+18n-16a+19n4xy-13xy+17xy-xy
17x2y+3y2z-20x2y+5y2z9n+8n2-4n-4n2-4
1175
—m+—t+—t-—m5z2-9mn-4z2-6
4747
1
—ab-4y-3ab6pq-7x2y-2pq+19pq
8
5b-5b-2b7x-4c-4x-9c
2m-8d+12m-7d-12m-20d4mn-4mn-11mn-mn
23x2y+3b2c-16x2y-5b2c3m-2m2-3m+18m2-2
4975
—z+—n+—n-—z7y2-9mn-3y2+3
3838
5
—xy-7y+9xy7xy+19a2b-19xy-24xy
6
6a+4a-9a8y+3c-3y-4c
7m+3c+17m+10c-12m-10c9xy+7xy+18xy-xy
4x2y+4b2c+2x2y+4b2c9x-4x2-5x+18x2-6
1875
—m+—t-—t-—m9y2-8mn+3y2+3
5757
6
—mn+4t-6mn8xy+14a2b+9xy+21xy
5
4d-2d+8d7x-2d-9x-10d
6b+4n+7b+18n+18b+11n3xy+11xy+13xy-xy
5x2y-9b2c-25x2y+3b2c2y+4y2-6y+20y2-7
3175
—z+—y-—y-—z12z2+5xy+8z2+2
4646
1
—mn+4x+3mn6mn-13x2y+6mn+30mn
5
2d+2d+5d4m-4e-7m-5e
4b-8d+7b-3d+13b+20d2mn-9mn+12mn-mn
29x2y-4b2c+2x2y-4b2c5t-4t2+4t-5t2+6
1175
—m-—y+—y-—m2m2-9mn-8m2+5
2828
1
—xy-9y+7xy7pq+19a2b+7pq+13pq
4
5b+3b+2b10m+4e+3m+7e
5a+3d-11a+18d+11a+12d4mn-14mn-14mn+mn
19x2y+9b2c-26x2y+8b2c5x-7x2-9x+15x2+9
1175
—x-—y+—y+—x9z2-2ab+6z2-4
5656
1
—xy+2m+3xy9ab-8x2y+3ab-15ab
6
4a+2a+7a10x-9b-7x-7b
2m+8n-7m-20n-17m+13n3mn+16mn+18mn+mn
8x2y+7y2z+3x2y-8y2z4t+6t2+4t-20t2+1
2775
—x-—y+—y+—x8y2-3pq-5y2-5
3838
9
—mn-3x-9mn6pq-11x2y-15pq-19pq
8
8b+9b-9b8m-9d-6m+7d
2m-5n+3m-9n-12m+12n4xy-15xy+19xy-xy
5x2y-6y2z-3x2y-2y2z5z+8z2+3z-9z2+3
2175
—z-—n+—n+—z10y2-9pq+9y2-4
3737
5
—xy-4m+2xy7mn+2a2b+16mn-24mn
6
7a-8a+8a4x+2c-4x-4c
7m-3c+2m-18c-10m-20c3ab+17ab-17ab+ab
8a2b+2y2z+20a2b+7y2z2t+9t2-8t-4t2-8
1175
—m+—t+—t+—m17y2-4mn+6y2+6
5656
6
—pq-3x-5pq5pq-20a2b+17pq+10pq
7
6b+3b-4b10y+2e+5y-6e
7m-2n-13m-14n+11m+11n4pq-14pq+18pq+pq
16a2b-6y2z+16a2b+3y2z2t+3t2-6t+11t2+8
4175
—x-—n+—n-—x5z2-7pq+2z2-4
3838
5
—pq+2x+8pq4ab+11a2b-8ab-7ab
4
2f-2f+3f7y+6f+2y-7f
9b+6c-8b-2c-11b-15c9ab+12ab+16ab-ab
4a2b+9y2z-10a2b-3y2z6y-2y2-5y-17y2+4
3975
—m+—n-—n+—m4x2+3pq-6x2-2
2828
1
—mn-9m-7mn4mn+7x2y+14mn-11mn
8