七年级数学下册计算题大全252.docx
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七年级数学下册计算题大全252
6
(x2-9xy-—x)+(3x2-8xy+2x)
7
11
(—xy+3y2-5)-(x2+—xy+3y2-1)
46
76
(xy-—y+—)-(xy+x-6)
67
(4y-7x-5z2)+(6y-6x-3z2)
(9k2-9k)+(3k2+3k+3)
(6a2-3a+7b)-(3a2+a+4b)
8x2+(7x2-3x-9)-(4x+3)
7y2+(4x2-y)-(2x2+7y2)
5
(2x2+4xy-—x)-(7x2-8xy-9x)
4
72
(—xy+4y2+9)-(x2+—xy-y2-7)
63
95
(xy+—y+—)-(xy-x-9)
86
(7y+7x-5z2)+(2y+7x-7z2)
(8k2-2k)-(9k2+9k-6)
(3a2-4a+5b)+(5a2+a-b)
9x2+(2x2-3x+7)-(3x-2)
9y2+(6x2+y)+(7x2-y2)
5
(8x2-6xy-—x)+(5x2-7xy-7x)
4
44
(—xy-8y2+6)+(x2+—xy+6y2+9)
53
98
(xy+—y-—)+(xy+x-6)
87
(2y-8x+4z2)-(2y+5x-7z2)
(6k2-8k)-(2k2-k+2)
(2a2-8a+7b)+(5a2+9a+5b)
5x2-(3x2-2x-7)+(7x+5)
y2-(x2+y)+(4x2+5y2)
7
(x2+2xy-—x)-(6x2+8xy-9x)
8
19
(—xy-7y2-2)+(x2-—xy-6y2+6)
48
14
(xy-—y+—)+(xy+x-4)
63
(3y+8x+3z2)-(9y+7x-9z2)
(k2-6k)-(8k2-5k+7)
(2a2-6a-8b)-(5a2+6a+2b)
6x2+(7x2-9x-5)+(9x+7)
y2+(7x2-y)-(9x2+2y2)
4
(4x2+4xy-—x)-(7x2+7xy+5x)
5
51
(—xy-5y2-8)+(x2-—xy+9y2-4)
68
14
(xy+—y+—)+(xy-x+2)
85
(8y+9x-5z2)+(5y+8x-5z2)
(k2+4k)-(k2-6k-7)
(a2+9a-8b)-(4a2-8a-b)
4x2-(8x2+4x+6)+(2x-9)
2y2+(6x2+y)-(4x2-2y2)
1
(5x2-5xy-—x)-(2x2-6xy-6x)
8
12
(—xy+y2-6)+(x2-—xy-4y2+7)
53
47
(xy+—y+—)-(xy+x-1)
56
(4y+8x-3z2)+(5y+5x+6z2)
(9k2-3k)-(8k2+9k+7)
(5a2+8a+3b)-(2a2+2a-4b)
9x2+(7x2+9x-5)+(3x-6)
5y2+(4x2+y)-(2x2+2y2)
1
(8x2-7xy+—x)+(7x2+xy+6x)
5
11
(—xy+2y2+2)-(x2-—xy+y2+2)
34
71
(xy-—y-—)+(xy-x+2)
65
(9y-6x+7z2)+(3y-6x+8z2)
(2k2+4k)-(6k2-9k-3)
(7a2+6a+8b)+(a2+9a+7b)
6x2+(5x2+8x+3)+(3x-8)
8y2+(4x2+y)-(3x2-2y2)
5
(2x2+3xy+—x)+(2x2+9xy-9x)
6
76
(—xy-7y2-8)+(x2+—xy+3y2-2)
65
91
(xy+—y+—)-(xy-x+4)
88
(7y+5x-8z2)+(8y-x-7z2)
(2k2-8k)+(2k2+7k+4)
(7a2+4a-5b)+(2a2-a+5b)
7x2+(8x2-4x+3)+(5x-6)
8y2-(7x2+y)+(2x2+8y2)
1
(6x2-xy+—x)-(x2-xy+8x)
6
11
(—xy+3y2-5)+(x2+—xy-8y2-6)
34
45
(xy+—y-—)+(xy-x-6)
34
(4y-3x+4z2)-(6y-6x+4z2)
(6k2-5k)+(7k2-k+7)
(7a2-5a-9b)-(4a2+9a-7b)
x2+(5x2+4x-7)-(2x-3)
2y2+(2x2-y)-(2x2-7y2)
2
(6x2-2xy+—x)+(x2-2xy+3x)
3
14
(—xy+5y2-3)+(x2-—xy+5y2+3)
45
41
(xy-—y-—)+(xy+x+5)
56
(6y+6x-7z2)+(7y+3x-z2)
(k2-6k)+(6k2+2k+2)
(2a2+7a-9b)-(6a2+6a+6b)
3x2-(6x2+5x-3)+(3x-1)
8y2-(x2+y)+(4x2+2y2)
1
(4x2-8xy+—x)-(9x2+5xy-3x)
6
61
(—xy-6y2+7)+(x2-—xy+6y2-2)
76
17
(xy-—y-—)+(xy-x+6)
38
(8y-4x+5z2)-(5y+6x-2z2)
(3k2+k)+(5k2-k+5)
(4a2-9a-5b)+(3a2-2a+b)
4x2-(9x2-3x-3)+(4x-5)
8y2+(5x2-y)-(6x2+4y2)
7
(7x2-7xy-—x)+(3x2+9xy+2x)
6
78
(—xy-7y2+6)+(x2+—xy+8y2-2)
67
17
(xy-—y-—)+(xy-x+5)
36
(4y-9x-9z2)+(6y+9x-6z2)
(5k2+3k)-(7k2+5k-6)
(5a2-2a-9b)+(a2+4a-3b)
8x2-(7x2+8x+3)-(7x-8)
y2+(7x2+y)-(5x2-9y2)
5
(x2-xy+—x)-(x2+6xy+7x)
6
67
(—xy-8y2-9)+(x2-—xy-y2+6)
56
11
(xy+—y+—)+(xy-x-2)
35
(2y-7x+3z2)-(2y-x+6z2)