七年级数学下册计算题大全128.docx
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七年级数学下册计算题大全128
7
(8x2-xy+—x)+(9x2-6xy-7x)
6
91
(—xy+5y2-3)-(x2+—xy-5y2+1)
88
17
(xy-—y-—)-(xy+x-1)
56
(6y+6x-5z2)+(4y-9x+z2)
(2k2-3k)+(4k2-4k-1)
(7a2-5a+7b)+(2a2-4a+7b)
9x2-(8x2+7x+3)-(2x+8)
3y2+(8x2+y)-(x2+7y2)
6
(9x2-3xy+—x)-(2x2+9xy+8x)
7
11
(—xy-y2+9)+(x2-—xy-5y2+5)
77
41
(xy+—y-—)+(xy-x-3)
33
(2y-7x+9z2)+(y+8x-7z2)
(2k2-3k)+(6k2+k+6)
(2a2-3a+7b)-(6a2+3a+4b)
4x2-(6x2+x+3)-(3x+6)
9y2-(8x2+y)+(9x2-3y2)
1
(8x2+5xy-—x)-(9x2-9xy+6x)
8
11
(—xy-6y2+2)+(x2+—xy+3y2-4)
84
41
(xy+—y-—)+(xy+x+1)
36
(6y+9x+6z2)-(y+9x+8z2)
(9k2-2k)+(6k2+4k-6)
(9a2-9a+4b)+(3a2-2a-5b)
6x2+(9x2-4x+9)-(2x+2)
y2-(6x2-y)-(5x2+2y2)
1
(5x2-4xy-—x)+(x2+4xy-x)
4
68
(—xy+9y2-6)+(x2-—xy+2y2+3)
57
51
(xy+—y+—)+(xy+x+8)
63
(4y-6x-6z2)+(6y+5x+5z2)
(2k2+9k)-(7k2-4k-5)
(a2-a-6b)-(a2+9a+9b)
4x2-(9x2+x+3)+(3x-3)
6y2-(x2-y)-(x2-7y2)
5
(9x2-2xy-—x)+(3x2+5xy+2x)
4
72
(—xy-8y2-3)-(x2+—xy-9y2+8)
63
11
(xy+—y+—)+(xy+x-5)
85
(9y+8x+8z2)-(7y+4x+z2)
(7k2+k)-(9k2+4k+1)
(9a2+9a-4b)+(7a2+8a-2b)
x2+(2x2-5x+5)-(3x+6)
7y2+(2x2+y)-(3x2-9y2)
4
(7x2+6xy-—x)+(7x2+xy+6x)
3
11
(—xy-3y2-1)+(x2-—xy-8y2-5)
75
17
(xy-—y+—)-(xy-x-5)
36
(5y+9x+2z2)+(2y-2x+8z2)
(9k2-4k)+(8k2+7k+2)
(7a2+8a-9b)-(9a2+7a+7b)
3x2-(6x2+6x-8)-(2x-9)
3y2-(3x2-y)-(8x2+5y2)
1
(6x2+xy-—x)-(6x2+7xy-5x)
5
45
(—xy+4y2+5)+(x2-—xy+9y2-4)
56
12
(xy-—y-—)+(xy-x+3)
43
(9y-2x-5z2)-(3y+6x+2z2)
(8k2+9k)-(7k2+7k-3)
(8a2-5a+6b)-(2a2-8a-9b)
6x2+(4x2+8x+8)+(8x-4)
3y2+(7x2-y)+(2x2+3y2)
1
(3x2+9xy+—x)-(5x2+8xy+5x)
6
22
(—xy+4y2-6)+(x2+—xy+4y2-9)
33
59
(xy+—y+—)-(xy-x-1)
48
(3y-7x+z2)+(6y-x+3z2)
(2k2-4k)-(8k2+7k-3)
(6a2+9a+4b)+(4a2+2a+4b)
3x2-(9x2+9x-3)+(x+4)
y2-(x2-y)+(7x2+3y2)
6
(6x2+xy-—x)+(8x2-7xy+x)
7
12
(—xy+7y2+6)-(x2+—xy-2y2-6)
43
35
(xy+—y+—)+(xy-x+2)
44
(2y+8x+7z2)+(9y+3x-z2)
(k2+4k)+(4k2-8k-2)
(3a2+7a-3b)+(5a2+6a+6b)
2x2-(2x2+4x-9)+(7x+3)
2y2-(5x2-y)+(7x2+2y2)
3
(9x2+xy-—x)+(9x2-6xy-9x)
4
13
(—xy+5y2+4)+(x2+—xy-8y2-9)
84
78
(xy+—y-—)+(xy-x+4)
87
(3y+9x-2z2)+(6y+6x+9z2)
(2k2-5k)-(4k2-2k+4)
(7a2-a+8b)+(2a2+4a+4b)
3x2+(2x2+6x+7)+(8x+9)
7y2-(x2-y)-(5x2+9y2)
1
(7x2-4xy-—x)-(5x2+3xy+8x)
3
14
(—xy+7y2-1)+(x2+—xy+6y2-5)
83
71
(xy-—y+—)+(xy+x+3)
85
(4y+x+z2)-(9y-3x+7z2)
(8k2-6k)+(5k2+7k+7)
(2a2+6a-2b)+(4a2+7a-4b)
4x2-(4x2-6x+4)-(7x-3)
6y2-(9x2-y)-(8x2-6y2)
7
(8x2+9xy-—x)-(6x2-xy+5x)
6
78
(—xy-5y2+5)+(x2+—xy+5y2+3)
67
82
(xy-—y+—)-(xy-x-8)
73
(5y-4x+8z2)+(6y-2x+9z2)
(k2+4k)+(k2+k-7)
(2a2-4a+4b)+(7a2+5a-b)
5x2-(8x2+3x+5)+(9x+1)
y2-(6x2-y)-(7x2-9y2)
1
(6x2+2xy+—x)+(8x2+6xy-6x)
8
51
(—xy-7y2+5)-(x2-—xy-2y2+3)
63
11
(xy-—y-—)+(xy+x+9)
78
(3y-2x-4z2)-(3y+3x-8z2)