七年级数学下册计算题大全6.docx
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七年级数学下册计算题大全6
8
(x2-2xy-—x)-(9x2-8xy-9x)
7
61
(—xy-3y2+1)+(x2+—xy+8y2-6)
57
21
(xy-—y+—)-(xy-x-5)
36
(4y-x+z2)+(8y+2x-2z2)
(4k2-4k)+(2k2+6k+3)
(3a2+4a+6b)-(2a2-a+4b)
5x2+(4x2-5x-2)-(3x+5)
4y2+(3x2+y)-(9x2+5y2)
1
(2x2+2xy+—x)+(5x2+4xy-9x)
8
67
(—xy-6y2-5)+(x2-—xy-2y2+5)
76
85
(xy-—y-—)-(xy-x-3)
76
(y-x-7z2)-(9y-6x+7z2)
(2k2+6k)-(9k2-9k+3)
(4a2-4a-5b)+(2a2-4a-5b)
2x2+(8x2+9x-4)+(9x+2)
9y2+(7x2-y)-(7x2-3y2)
9
(4x2+2xy+—x)+(x2-4xy+5x)
8
41
(—xy-4y2+8)-(x2-—xy+4y2+5)
54
48
(xy-—y+—)+(xy+x+3)
57
(9y+2x+2z2)+(7y+5x-5z2)
(8k2+8k)-(k2+2k+3)
(7a2-8a+8b)+(6a2+4a-3b)
9x2+(2x2+9x+9)+(3x-7)
8y2+(5x2+y)+(2x2-7y2)
6
(9x2+6xy-—x)-(2x2+9xy+2x)
7
14
(—xy-6y2+5)-(x2+—xy-6y2+5)
53
76
(xy-—y+—)-(xy+x-4)
67
(6y-9x-2z2)-(3y-8x-2z2)
(8k2+k)-(3k2+6k+8)
(9a2-4a+7b)-(8a2-8a+6b)
5x2-(7x2-5x-9)-(9x-6)
9y2-(8x2+y)+(3x2-8y2)
1
(x2+7xy-—x)-(4x2-8xy+7x)
6
14
(—xy-6y2+6)+(x2-—xy-8y2+4)
83
11
(xy+—y-—)+(xy+x+2)
74
(8y-4x-5z2)+(9y-6x+4z2)
(3k2-8k)+(7k2+7k+4)
(2a2+a+b)-(5a2+5a+b)
4x2+(8x2-4x-3)-(2x-6)
8y2+(5x2-y)-(5x2+7y2)
1
(6x2+7xy+—x)+(7x2+2xy-3x)
8
11
(—xy-y2-9)+(x2+—xy+y2-9)
86
71
(xy+—y-—)-(xy+x-9)
65
(5y-7x+9z2)+(9y-4x+2z2)
(7k2+5k)+(9k2+5k-1)
(3a2-4a-4b)+(3a2-a-4b)
x2-(7x2+3x-7)+(7x+8)
4y2-(7x2-y)-(9x2-6y2)
2
(4x2+2xy-—x)-(x2-5xy+x)
3
14
(—xy-2y2-9)+(x2-—xy+3y2-8)
45
17
(xy-—y+—)-(xy+x-4)
76
(2y+5x-7z2)+(3y+6x+8z2)
(4k2+7k)-(6k2+7k-5)
(2a2+2a+7b)+(8a2+3a-b)
2x2-(x2+9x-1)+(7x-3)
6y2+(4x2+y)-(4x2+5y2)
7
(7x2+8xy-—x)+(x2-8xy+3x)
6
43
(—xy-3y2+4)-(x2+—xy+5y2-4)
34
65
(xy+—y-—)+(xy-x-5)
74
(6y-7x+3z2)-(y-2x+4z2)
(2k2+3k)+(6k2-3k-8)
(2a2+6a-7b)-(6a2-a-3b)
6x2-(8x2-9x-5)+(7x+3)
7y2+(2x2+y)-(8x2+8y2)
1
(x2-6xy-—x)+(x2+9xy+4x)
7
41
(—xy-6y2-9)+(x2-—xy-3y2+9)
58
11
(xy+—y-—)+(xy-x-6)
76
(6y-5x+9z2)-(3y+4x+5z2)
(7k2+k)-(3k2-4k+9)
(9a2+6a-9b)-(8a2+8a+7b)
3x2-(8x2+x+2)+(2x-6)
5y2-(8x2+y)-(7x2+7y2)
1
(8x2-3xy+—x)-(7x2+2xy+8x)
3
11
(—xy+5y2-2)+(x2-—xy-8y2-5)
56
11
(xy+—y-—)-(xy-x+1)
75
(6y-5x-8z2)-(5y+8x+5z2)
(k2+7k)+(4k2+6k-1)
(5a2-3a-6b)+(8a2-2a+6b)
2x2+(3x2-4x-9)-(7x-7)
2y2-(9x2+y)+(6x2-7y2)
1
(8x2-8xy+—x)+(2x2-5xy-2x)
3
16
(—xy-6y2+7)-(x2-—xy+2y2-5)
67
11
(xy+—y+—)-(xy+x+5)
88
(8y-5x-3z2)+(9y+7x-3z2)
(2k2-k)+(4k2+3k-7)
(9a2-8a+8b)+(3a2+5a+6b)
6x2-(7x2+7x-4)+(2x-5)
9y2+(6x2+y)+(2x2+4y2)
1
(8x2+xy-—x)-(7x2-xy-8x)
4
18
(—xy+y2+2)+(x2-—xy+7y2-7)
37
27
(xy+—y+—)-(xy+x+2)
36
(7y+2x+7z2)+(8y+7x+8z2)
(k2+6k)+(9k2-k+6)
(2a2+2a+3b)+(a2-8a+8b)
8x2-(8x2-2x+8)-(3x-4)
2y2-(x2+y)-(3x2+3y2)
7
(2x2+5xy+—x)-(9x2-9xy-x)
8
31
(—xy-2y2+9)-(x2+—xy-6y2+7)
43
11
(xy-—y+—)+(xy-x-6)
74
(y+7x-7z2)-(9y+3x-8z2)