初一数学上册合并同类项专项练习题70Word文件下载.docx
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初一数学上册合并同类项专项练习题70Word文件下载.docx
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1
—pq+7t-7pq7mn+17x2y+4mn+29mn
6
5a+6a+5a8t+6a-5t+10a
2b-6c+15b-11c-13b+14c9ab-15ab+11ab+ab
3a2b+5b2c+4a2b+5b2c4n-3n2-6n+6n2-3
5175
—m+—n-—n-—m10y2+7pq-4y2-9
4747
—xy+3z-3xy3mn-5x2y-8mn-26mn
5
5a+3a-9a4t+8b+4t+8b
3b-4n-16b-13n-13b-12n3xy-9xy-10xy-xy
2x2y-2y2z-25x2y-4y2z9x+3x2-4x-14x2+2
6175
—z+—y-—y-—z16y2-7mn-5y2-2
5858
—xy-6n+4xy5pq-12a2b-11pq+13pq
4
3e-4e+2e6z+8e+2z+10e
4b+5n+6b-20n-14b+11n2ab-5ab+11ab+ab
25x2y+8b2c-30x2y-4b2c3y+3y2+3y-13y2+2
3775
—m+—t+—t-—m8z2+6ab-2z2+7
2626
—ab+8n-2ab7pq-3x2y+10pq-4pq
2c+4c-2c10m+3e+5m+6e
6b+7c+14b+10c+17b+20c8pq-2pq+14pq+pq
4a2b+8b2c+24a2b+7b2c7x-3x2+9x+15x2+4
1175
—m-—y-—y+—m18n2+2pq-5n2+9
—pq-8x-4pq7mn+9a2b+18mn-22mn
2
7f-2f+3f2y-4c+3y-7c
5b-9c-17b-11c+20b+17c7ab-20ab-14ab-ab
8a2b-9y2z-26a2b-3y2z8m+8m2+5m-17m2+6
3175
—z+—y+—y+—z17t2+2pq-4t2+9
9
—xy-8z+9xy9xy-19x2y+7xy+2xy
8
5f-8f-2f2z-2f-8z-2f
4b+2c+14b+14c-14b+16c3mn+10mn+14mn+mn
13a2b-3y2z-3a2b-6y2z6m+7m2-3m+20m2+7
—z-—n-—n-—z2n2-6pq+9n2-8
3737
—xy-4m+8xy7mn-14x2y-5mn-7mn
2b-6b-9b3m-6f-4m-9f
6m+3c+16m+3c-18m+14c7ab-12ab+16ab+ab
25x2y-2b2c-6x2y-4b2c7n-2n2+9n-7n2-9
4175
—z+—n+—n+—z8x2+2xy-3x2-4
3838
—pq-6z-4pq9xy-20x2y-2xy-24xy
7
3d-9d+5d6t-3f-9t-3f
5m+4d+20m+15d-14m+10d6pq-18pq+17pq-pq
29x2y-3y2z+9x2y-2y2z9y-4y2+6y+2y2-1
—x-—t+—t-—x13z2+6mn+5z2+9
—pq-7y+9pq5pq-8x2y+7pq+27pq
6d+3d-7d6t-9a+7t-9a
7m+3n+6m+4n+11m-11n3mn-2mn-10mn-mn
14x2y-2b2c+26x2y+2b2c3n-6n2+2n-17n2+5
2175
—x-—y-—y-—x20y2-7mn-7y2+2
3636
—mn-8n+8mn5xy-2a2b-20xy+20xy
8c+4c-4c2y-8e+3y-3e
7a-2d+11a-14d-15a+15d9pq+11pq-19pq-pq
13x2y-8y2z-23x2y-5y2z4m+8m2-4m+16m2+5
—x-—y-—y-—x19n2-5mn+5n2-7
—xy+5y+8xy3xy+9x2y-4xy+20xy
3
5b-2b+5b3t+6a-7t-8a
7a+6n+18a-19n-14a+20n5xy-9xy+19xy-xy
20x2y-6y2z+20x2y+8y2z7z-6z2-7z-10z2+1
1575
—m-—t-—t+—m16n2+6pq-9n2+8
—pq-6m-2pq3mn-17a2b+13mn-17mn
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- 初一 数学 上册 合并 同类项 专项 练习题 70