七年级数学下册计算题大全56Word文档下载推荐.docx
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y2-(5x2-y)+(2x2-9y2)
(3x2+9xy-—x)-(3x2+8xy-9x)
4
(—xy+5y2-8)+(x2+—xy-6y2+9)
78
61
(xy-—y-—)-(xy+x-3)
76
(2y+x-7z2)+(3y+8x+9z2)
(5k2+9k)-(4k2+8k-8)
(8a2+5a+4b)-(8a2-8a+8b)
7x2-(4x2+2x-2)+(9x+2)
9y2-(2x2-y)+(8x2+5y2)
(8x2-5xy-—x)+(x2+4xy+6x)
5
11
(—xy+8y2+1)-(x2-—xy-4y2-7)
11
(xy-—y+—)+(xy+x-4)
43
(3y-6x+8z2)+(5y-3x+5z2)
(6k2+4k)-(2k2+8k+7)
(4a2-8a+3b)-(8a2-8a-6b)
6x2-(4x2+3x-4)-(6x-6)
4y2+(4x2-y)+(4x2+8y2)
(x2-6xy-—x)-(5x2-7xy+3x)
86
(—xy-y2+4)-(x2-—xy-y2-5)
77
13
(xy-—y-—)+(xy-x+2)
34
(y-7x+9z2)-(7y-8x-5z2)
(7k2-3k)+(3k2-4k+5)
(a2+8a+4b)+(2a2+a-b)
x2-(5x2+6x+9)+(8x+4)
9y2-(3x2+y)+(x2+3y2)
(8x2+6xy-—x)-(5x2+xy+7x)
27
(—xy+9y2+4)+(x2-—xy+9y2+9)
36
35
(xy+—y+—)-(xy+x+1)
44
(2y-8x+5z2)-(2y-8x+9z2)
(5k2-5k)+(2k2-8k+5)
(8a2-a-b)+(3a2-6a+5b)
9x2-(2x2+4x-5)+(5x+3)
9y2-(4x2-y)+(4x2+8y2)
8
(9x2-5xy-—x)+(6x2+9xy+3x)
7
51
(—xy-7y2-2)+(x2+—xy+5y2+7)
44
18
(xy+—y-—)+(xy+x-4)
47
(6y-8x-3z2)-(3y-8x+2z2)
(7k2+5k)-(4k2-2k+1)
(a2-6a+6b)-(7a2-2a-4b)
9x2+(9x2-8x+3)+(2x+8)
y2-(4x2+y)+(3x2+4y2)
(5x2+8xy+—x)+(9x2-xy+9x)
31
(—xy-4y2+8)-(x2-—xy+4y2+9)
48
(xy+—y+—)-(xy+x+5)
68
(2y-4x-5z2)+(6y-2x-3z2)
(5k2-5k)+(3k2+8k-3)
(a2+5a+8b)+(6a2-7a-6b)
5x2-(9x2-x+2)-(4x+8)
8y2-(9x2-y)+(2x2+3y2)
(8x2+3xy+—x)+(5x2+4xy+3x)
(—xy+2y2-2)-(x2+—xy+5y2-3)
67
66
(xy-—y+—)+(xy+x-5)
77
(6y+9x-4z2)-(3y-3x+9z2)
(3k2-8k)-(3k2+9k+6)
(a2+8a-6b)+(8a2+4a-9b)
4x2-(3x2-7x+3)+(3x-8)
2y2-(3x2-y)-(6x2+8y2)
2
(4x2+9xy-—x)-(2x2+8xy+x)
3
(—xy+2y2+1)-(x2+—xy+y2+3)
37
71
(xy+—y+—)-(xy+x+8)
83
(4y+2x+3z2)+(y+6x+5z2)
(9k2-9k)-(6k2+4k-8)
(9a2-3a+7b)-(a2-4a+7b)
x2-(7x2+8x+7)-(6x-8)
3y2+(7x2+y)+(8x2-4y2)
(7x2+2xy+—x)+(6x2+3xy-2x)
14
(—xy-3y2+1)+(x2+—xy+2y2+4)
65
14
(xy+—y+—)+(xy-x+7)
55
(8y+9x+3z2)-(7y-9x-3z2)
(2k2-4k)+(7k2-5k+4)
(6a2-8a+2b)+(2a2+8a+3b)
8x2+(3x2+4x+4)-(9x-6)
4y2-(9x2+y)+(2x2-5y2)
(3x2-2xy-—x)-(7x2-2xy-4x)
47
(—xy+5y2-4)-(x2+—xy-9y2-7)
(xy-—y+—)-(xy-x+6)
(5y+x-7z2)-(6y+8x-5z2)
(8k2+8k)+(8k2+8k-8)
(4a2-a-6b)+(7a2-8a-7b)
4x2-(6x2-4x+4)+(4x-2)
4y2-(8x2-y)+(3x2+5y2)
(6x2+6xy-—x)-(3x2-9xy-6x)
(—xy-2y2-1)+(x2-—xy+2y2+1)
95
(xy-—y+—)-(xy+x+9)
84
(3y+8x-z2)-(2y-4x+z2)
(7k2+2k)+(3k2+3k+1)
(5a2+4a-9b)+(9a2+3a+6b)
5x2+(6x2+4x+8)-(8x+8)
6y2+(3x2-y)-(x2+4y2)
(4x2+3xy-—x)+(6x2-7xy-6x)
16
(—xy-6y2+4)+(x2+—xy+7y2+9)
75
29
(xy+—y+—)+(xy-x-8)
38
(5y+8x+5z2)+(8y-8x-7z2)