七年级数学下册计算题大全194Word文件下载.docx
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七年级数学下册计算题大全194Word文件下载.docx
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5x2-(9x2-5x-8)-(7x+1)
2y2+(6x2-y)-(4x2+3y2)
1
(2x2-8xy+—x)-(5x2-2xy+6x)
21
(—xy+7y2-6)+(x2-—xy+y2+8)
84
(xy+—y-—)-(xy-x-8)
73
(y-2x-5z2)-(3y+7x-4z2)
(6k2-6k)-(3k2+7k-7)
(9a2-2a+b)+(4a2+8a-2b)
6x2+(5x2+3x-4)+(3x-8)
8y2-(9x2-y)-(8x2+3y2)
8
(5x2+8xy-—x)-(x2+8xy-4x)
7
41
(—xy+6y2+4)+(x2-—xy-4y2+1)
53
66
(xy+—y-—)-(xy+x+3)
55
(5y-3x-z2)+(9y+8x-6z2)
(3k2-8k)-(8k2-2k-5)
(7a2+2a-2b)+(a2+8a-4b)
6x2-(x2+7x-2)+(4x+5)
2y2-(5x2-y)+(2x2-2y2)
(5x2-8xy+—x)-(2x2+xy-3x)
3
11
(—xy-2y2+5)-(x2+—xy+9y2-8)
65
99
(xy-—y-—)-(xy-x+4)
88
(4y+5x-7z2)+(4y+9x+8z2)
(9k2+k)+(k2+7k-5)
(8a2+a+2b)+(4a2-9a-7b)
2x2-(9x2-9x-9)+(x-8)
y2-(5x2-y)-(9x2+4y2)
(2x2-xy-—x)+(4x2+6xy+9x)
15
(—xy-5y2+6)-(x2-—xy+2y2-6)
54
11
(xy+—y+—)-(xy+x+7)
(y+5x-9z2)+(8y+8x-9z2)
(3k2-2k)+(3k2+5k+8)
(a2+5a+5b)+(2a2+a-7b)
7x2+(4x2+6x-2)-(x+9)
7y2+(5x2+y)+(x2-8y2)
(5x2+5xy-—x)+(6x2+5xy+9x)
6
16
(—xy+9y2-6)+(x2+—xy-2y2-3)
45
25
(xy+—y-—)-(xy+x+9)
36
(6y-2x+6z2)-(5y-4x+9z2)
(2k2-k)-(4k2+9k-1)
(5a2+4a-4b)-(6a2+8a+9b)
9x2+(x2-x-5)-(x-9)
3y2+(6x2-y)-(8x2+7y2)
(8x2-xy+—x)-(3x2-5xy-3x)
14
(—xy+6y2-6)+(x2-—xy+9y2-2)
55
(xy+—y+—)+(xy-x+5)
(8y-9x-8z2)+(2y-2x-7z2)
(7k2-8k)-(k2+8k+6)
(6a2+4a-7b)-(9a2+6a+5b)
4x2+(2x2-x+3)+(9x-6)
6y2-(3x2-y)-(4x2+6y2)
(3x2-6xy-—x)-(2x2+6xy+x)
(—xy-2y2+3)+(x2+—xy-4y2+8)
57
16
(xy+—y+—)+(xy+x+5)
77
(2y+6x-2z2)+(y-5x+7z2)
(2k2-5k)-(5k2+6k-7)
(a2+4a+4b)+(2a2-4a+b)
3x2-(8x2-9x+8)+(5x+9)
3y2-(4x2+y)-(8x2-4y2)
(5x2+2xy+—x)-(3x2+4xy-8x)
67
(—xy-4y2+5)-(x2-—xy-2y2+2)
56
(xy+—y+—)+(xy+x-8)
(3y-5x-6z2)+(4y-8x-z2)
(3k2+8k)+(8k2-9k-2)
(5a2+2a+2b)+(2a2-7a-6b)
3x2-(8x2+7x-2)+(8x+9)
9y2-(2x2+y)-(9x2-3y2)
(3x2-2xy+—x)-(5x2-9xy-2x)
72
(—xy-3y2+7)+(x2+—xy-2y2+8)
83
21
(xy+—y-—)-(xy+x-5)
38
(8y-5x-7z2)-(y-x+7z2)
(2k2+9k)+(6k2-7k+8)
(8a2+5a+8b)+(3a2+4a-8b)
3x2+(6x2-2x+6)-(5x+5)
6y2-(4x2+y)+(2x2-8y2)
(8x2-2xy+—x)+(9x2-8xy+4x)
68
(—xy-4y2+6)-(x2+—xy+2y2-9)
77
14
63
(5y+5x-6z2)-(3y-4x-9z2)
(4k2-7k)+(5k2-k-8)
(2a2-9a-6b)+(a2-4a+7b)
8x2-(6x2+8x-6)+(8x-8)
y2-(3x2+y)+(6x2-y2)
(x2+xy+—x)+(3x2-9xy-9x)
(—xy-y2-2)+(x2+—xy+3y2+3)
(xy-—y+—)-(xy-x-8)
(2y-9x-7z2)+(8y-8x+8z2)
(5k2-5k)+(5k2+7k+2)
(6a2-a-b)+(7a2+7a-2b)
8x2-(8x2+x-9)-(4x+3)
5y2-(x2-y)+(x2+y2)
(8x2-xy+—x)+(2x2+7xy-6x)
(—xy-2y2+7)-(x2-—xy-6y2-1)
78
54
(xy-—y-—)+(xy+x+2)
45
(2y-7x+5z2)+(y-4x+8z2)
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