七年级数学下册计算题大全238Word下载.docx
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y2+(9x2+y)+(8x2+7y2)
(9x2+9xy-—x)-(5x2+6xy-9x)
6
(—xy+2y2-5)-(x2+—xy+4y2+9)
65
21
(xy-—y+—)+(xy-x+9)
38
(y+7x+z2)-(y+3x-7z2)
(k2+6k)+(6k2-4k+7)
(8a2-2a+8b)+(7a2+3a-b)
3x2-(5x2-7x+8)+(8x+3)
4y2-(8x2-y)+(5x2-6y2)
3
(4x2-5xy-—x)-(6x2+xy+3x)
4
14
(—xy+6y2+7)+(x2-—xy-7y2+4)
45
19
(xy-—y-—)+(xy-x-1)
68
(9y-9x+z2)+(3y-3x-7z2)
(3k2+7k)+(3k2+7k-6)
(a2-5a-2b)+(8a2+2a-6b)
7x2+(9x2-9x-5)-(6x+7)
4y2-(3x2+y)-(3x2+6y2)
(3x2+6xy-—x)+(4x2+9xy+x)
17
(—xy+8y2-4)+(x2+—xy-3y2-7)
36
55
(xy-—y+—)-(xy+x-6)
64
(y-5x+8z2)-(3y-7x+8z2)
(4k2-5k)-(k2-6k+8)
(9a2-2a-b)-(4a2+a+9b)
2x2+(6x2+8x-2)+(9x-8)
8y2-(x2-y)-(x2-2y2)
5
(5x2-8xy-—x)+(8x2+4xy+5x)
16
(—xy-9y2-5)-(x2+—xy+6y2+3)
67
31
(xy+—y-—)+(xy+x+3)
47
(2y+6x+4z2)-(6y+7x-6z2)
(8k2-7k)+(5k2-4k+1)
(2a2-a+b)+(2a2+7a-b)
6x2-(5x2-6x+7)-(9x-3)
8y2+(9x2+y)-(3x2+y2)
(4x2+9xy+—x)-(3x2-5xy+3x)
21
(—xy-5y2+8)-(x2+—xy-6y2+2)
(xy+—y+—)+(xy-x-1)
37
(5y+8x+6z2)+(8y-8x-4z2)
(9k2-7k)+(7k2-8k-4)
(6a2-a-5b)+(5a2-4a+2b)
7x2-(7x2+3x-1)+(9x-8)
2y2-(6x2+y)+(2x2+5y2)
9
(5x2-2xy-—x)-(x2+xy+3x)
8
(—xy-y2-6)+(x2+—xy-5y2-4)
84
11
(xy-—y+—)+(xy-x-8)
65
(3y+4x-2z2)-(y+4x-8z2)
(k2-8k)+(9k2-4k+4)
(5a2-4a-8b)+(6a2+6a-4b)
5x2+(3x2-6x+5)+(4x-5)
7y2+(6x2+y)-(4x2-7y2)
(x2-3xy+—x)-(9x2-8xy+x)
79
(—xy+3y2-1)-(x2+—xy+y2-4)
68
(xy-—y+—)-(xy-x-3)
67
(3y+2x+7z2)+(8y-2x-z2)
(8k2-7k)+(4k2+5k+6)
(4a2-a-6b)-(6a2+4a+8b)
x2-(6x2-5x-3)-(7x+2)
3y2-(7x2+y)-(8x2+6y2)
(8x2-2xy+—x)+(x2-8xy+9x)
(—xy+4y2-5)+(x2-—xy-5y2-2)
88
15
(xy-—y-—)+(xy+x+1)
54
(7y-7x-2z2)+(y+3x-3z2)
(2k2-8k)-(6k2-4k-6)
(5a2+8a-7b)+(7a2+4a-4b)
3x2-(7x2+4x-8)-(3x-2)
3y2+(6x2+y)-(5x2-2y2)
(2x2+xy-—x)-(2x2+9xy+8x)
(—xy+9y2+6)-(x2-—xy-4y2-2)
64
52
(xy-—y-—)+(xy-x+9)
63
(9y+7x+6z2)-(9y+2x-4z2)
(4k2-9k)-(9k2-7k+4)
(9a2+8a-4b)-(5a2+2a+8b)
x2+(2x2-9x-7)-(5x-1)
y2-(2x2-y)+(9x2+4y2)
(x2+9xy+—x)+(2x2-4xy+x)
75
(—xy+2y2+7)-(x2+—xy+y2+4)
66
96
(xy-—y-—)-(xy-x-4)
87
(7y+9x-2z2)+(2y-4x+8z2)
(k2+2k)+(3k2+5k+9)
(6a2-6a+2b)-(8a2-a+2b)
4x2+(3x2-7x+4)+(5x-5)
7y2+(6x2+y)-(2x2+7y2)
(7x2+7xy+—x)+(8x2+9xy-9x)
(—xy+7y2+7)-(x2+—xy-6y2+5)
83
91
(xy-—y+—)+(xy-x-7)
(6y-9x-4z2)-(3y+7x-4z2)
(4k2+2k)+(2k2+9k+4)
(7a2+a-b)-(6a2+a+5b)
5x2+(5x2-2x+7)-(2x+1)
5y2-(7x2+y)+(x2-8y2)
(6x2-xy-—x)-(8x2-2xy+9x)
(—xy+2y2+2)+(x2-—xy+8y2-3)
35
99
(xy+—y+—)-(xy-x-6)
88
(9y+9x-4z2)+(9y+4x-3z2)