七年级数学下册计算题大全242.docx
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七年级数学下册计算题大全242
7
(6x2-8xy+—x)-(5x2+xy-8x)
8
73
(—xy-3y2+8)-(x2-—xy-y2+4)
84
14
(xy+—y-—)-(xy-x-4)
53
(5y-5x-4z2)+(y+6x+6z2)
(9k2+7k)+(7k2-7k+3)
(2a2+7a-8b)-(6a2-6a+3b)
3x2-(7x2-6x-7)-(9x+8)
4y2-(7x2+y)+(3x2-8y2)
1
(2x2+8xy+—x)-(6x2-8xy-2x)
5
18
(—xy-4y2-1)-(x2+—xy-5y2+7)
87
19
(xy-—y+—)+(xy+x-1)
48
(2y+5x-4z2)+(6y-4x-5z2)
(7k2-5k)-(4k2+k-3)
(8a2+8a-5b)-(6a2-4a+3b)
4x2-(6x2-7x-1)+(7x+3)
3y2-(9x2-y)-(5x2+6y2)
5
(4x2+9xy-—x)+(2x2-3xy+8x)
4
15
(—xy+9y2+5)-(x2+—xy-7y2+4)
84
15
(xy+—y-—)-(xy+x-6)
64
(y-8x+7z2)-(2y+7x+8z2)
(5k2-6k)-(k2-2k-5)
(2a2-3a-5b)-(7a2-8a-b)
2x2+(2x2-6x+5)+(5x+4)
y2+(9x2+y)-(x2+9y2)
5
(8x2+9xy-—x)+(5x2-3xy-6x)
6
17
(—xy+9y2-9)+(x2-—xy-y2-4)
68
76
(xy-—y+—)-(xy-x+9)
67
(9y-8x-6z2)+(8y+9x-7z2)
(2k2-9k)+(8k2-4k+7)
(a2+7a+3b)-(6a2+6a-9b)
9x2-(4x2+3x+6)-(4x+4)
4y2-(9x2+y)+(6x2-9y2)
1
(6x2+xy-—x)+(4x2-6xy+x)
6
51
(—xy+8y2+4)+(x2+—xy-6y2-8)
63
91
(xy+—y+—)+(xy+x+2)
83
(2y-x-7z2)+(7y-9x+4z2)
(k2-7k)-(8k2+8k+8)
(7a2+6a+3b)-(4a2+4a+6b)
9x2+(2x2+8x-6)+(3x+9)
6y2+(x2-y)+(6x2+7y2)
4
(4x2-9xy-—x)-(7x2+6xy+7x)
3
11
(—xy+4y2+3)-(x2-—xy+4y2-8)
38
18
(xy-—y-—)+(xy+x-4)
67
(3y-7x-z2)-(2y-4x-3z2)
(6k2-k)+(k2-2k-5)
(4a2+4a+6b)+(6a2-3a-3b)
6x2+(x2-6x+4)+(2x-7)
7y2+(3x2+y)+(x2-y2)
1
(6x2-8xy-—x)+(3x2-5xy-9x)
6
11
(—xy+3y2+1)-(x2-—xy+y2-8)
34
11
(xy-—y+—)-(xy-x-3)
47
(3y+5x+4z2)+(5y+4x-7z2)
(5k2-9k)-(3k2+6k-4)
(9a2-7a+5b)+(2a2-a+8b)
8x2-(5x2+2x+9)-(x-2)
8y2+(8x2+y)-(x2+6y2)
1
(7x2-9xy-—x)+(6x2-5xy-8x)
8
72
(—xy+9y2+8)-(x2-—xy+3y2-5)
63
14
(xy+—y+—)+(xy+x+6)
33
(8y-5x+4z2)+(2y+4x+4z2)
(9k2+6k)-(9k2-4k-9)
(a2+5a-b)+(5a2-2a+8b)
3x2-(9x2-2x-7)+(2x+9)
9y2+(6x2+y)-(9x2-2y2)
6
(7x2-3xy-—x)-(8x2-xy+4x)
7
11
(—xy+9y2-7)+(x2-—xy-4y2-6)
75
11
(xy+—y-—)-(xy+x+1)
84
(8y+9x+4z2)-(7y+2x+4z2)
(2k2+6k)+(5k2+3k+3)
(9a2+2a+8b)-(5a2-2a+6b)
7x2+(8x2+5x+8)-(x+1)
6y2+(3x2-y)+(3x2+5y2)
8
(7x2+8xy+—x)+(6x2+6xy-6x)
7
27
(—xy-9y2+7)+(x2-—xy-8y2-7)
36
51
(xy+—y-—)+(xy+x-2)
64
(5y+5x-z2)+(6y+4x-4z2)
(7k2-5k)-(7k2-8k+4)
(9a2+8a-6b)+(4a2-4a+2b)
8x2+(4x2+4x+6)+(3x-4)
9y2+(6x2+y)+(8x2-6y2)
7
(8x2-8xy+—x)+(8x2-5xy-8x)
6
82
(—xy+4y2-3)-(x2-—xy-2y2-5)
73
61
(xy-—y-—)-(xy+x+3)
76
(9y-4x+6z2)+(6y-6x-9z2)
(8k2-2k)-(2k2-5k+8)
(4a2+7a-5b)-(8a2-6a-7b)
2x2+(6x2-x+9)-(6x+7)
8y2-(2x2+y)+(9x2+4y2)
7
(8x2-3xy-—x)+(8x2-7xy-9x)
8
11
(—xy-2y2+8)-(x2-—xy+9y2+3)
53
42
(xy+—y-—)+(xy+x-4)
33
(5y-9x+8z2)-(3y+6x+z2)
(7k2+6k)-(8k2-8k+1)
(3a2-9a-7b)+(7a2+4a+4b)
2x2+(2x2-4x-2)+(9x-2)
8y2+(5x2+y)-(4x2+3y2)
1
(8x2-2xy-—x)+(2x2-6xy+8x)
4
25
(—xy+6y2+8)-(x2-—xy+2y2-6)
36
13
(xy+—y-—)-(xy-x+9)
64
(7y-6x+4z2)-(4y-6x-3z2)