七年级数学下册计算题大全3.docx
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七年级数学下册计算题大全3
(5k2-3k)-(k2+2k+9)
(7a2-9a+3b)-(9a2-8a+b)
7x2-(x2-x-8)+(8x+9)
4y2+(2x2+y)+(6x2-9y2)
1
(6x2-7xy+—x)+(9x2-6xy-8x)
3
11
(—xy-9y2+8)-(x2+—xy-5y2-9)
43
11
(xy+—y-—)-(xy+x-4)
66
(9y+x-z2)+(9y+8x+2z2)
(3k2+5k)-(7k2+8k-1)
(6a2-2a+5b)-(4a2-a+3b)
4x2+(x2+x-5)+(6x+9)
8y2+(6x2+y)+(5x2+8y2)
4
(8x2+6xy+—x)-(3x2-4xy-8x)
5
21
(—xy-2y2-6)-(x2-—xy+2y2+6)
35
57
(xy-—y+—)-(xy-x-3)
46
(5y+x-9z2)-(2y-2x-6z2)
(5k2-4k)+(2k2-3k-4)
(4a2+9a+5b)+(8a2+6a+6b)
8x2+(8x2-4x+7)-(x-3)
5y2-(3x2-y)+(2x2-3y2)
1
(8x2+7xy+—x)-(2x2-7xy-9x)
8
19
(—xy-9y2+4)-(x2+—xy+4y2-8)
48
44
(xy+—y-—)+(xy-x+4)
55
(6y-7x+7z2)+(4y+9x+2z2)
(5k2-4k)-(7k2-8k-3)
(3a2-4a-b)+(a2+a-2b)
7x2-(8x2-2x+6)+(2x-1)
9y2-(7x2-y)-(6x2-9y2)
1
(4x2-4xy-—x)-(3x2+xy-3x)
7
18
(—xy-2y2+3)-(x2-—xy-7y2-7)
67
12
(xy+—y+—)-(xy+x-3)
83
(5y-9x+8z2)+(8y+3x+2z2)
(2k2+2k)+(3k2+7k-5)
(2a2+9a-3b)-(a2-9a-b)
3x2-(9x2+5x-3)-(9x-9)
6y2+(3x2-y)+(9x2-2y2)
5
(9x2+6xy-—x)+(2x2+6xy-3x)
6
11
(—xy+3y2+7)+(x2-—xy+8y2-4)
54
97
(xy-—y+—)+(xy+x+6)
86
(9y+2x-4z2)+(8y-7x-9z2)
(8k2-6k)+(5k2+4k-6)
(2a2-8a-9b)+(a2+2a+7b)
x2-(6x2-3x-5)+(5x-6)
6y2-(3x2+y)-(2x2-4y2)
1
(7x2+3xy+—x)-(6x2-2xy-4x)
4
34
(—xy-y2+1)+(x2+—xy+6y2-3)
45
77
(xy+—y-—)-(xy+x-7)
68
(4y-5x-4z2)+(6y-9x+7z2)
(9k2-8k)+(k2-7k+6)
(8a2+9a+4b)+(3a2-7a+7b)
3x2-(4x2+3x-8)-(3x-3)
4y2-(3x2-y)-(4x2-9y2)
7
(7x2+7xy-—x)+(7x2+8xy+7x)
6
11
(—xy+9y2+7)-(x2-—xy+2y2+9)
56
18
(xy-—y-—)-(xy-x+1)
47
(5y+9x-5z2)-(y+8x-9z2)
(4k2-9k)-(3k2+2k-4)
(8a2+8a+7b)-(6a2-3a+3b)
x2-(4x2-2x+8)+(3x+1)
5y2+(4x2-y)-(3x2+9y2)
5
(4x2-2xy-—x)+(5x2-2xy-7x)
4
46
(—xy+9y2-2)+(x2-—xy-5y2-9)
35
77
(xy+—y-—)+(xy-x+3)
88
(6y+6x+6z2)+(y+7x-5z2)
(3k2-9k)-(5k2-9k-9)
(8a2+5a+8b)-(a2+6a+4b)
8x2-(8x2+x-9)+(4x+3)
5y2+(3x2+y)-(5x2-4y2)
1
(8x2-4xy+—x)+(5x2-4xy+3x)
6
21
(—xy+y2-4)-(x2+—xy-5y2+9)
38
57
(xy+—y-—)+(xy+x-3)
48
(3y+7x+9z2)+(6y-3x-6z2)
(2k2+k)-(4k2-6k+9)
(9a2+6a+4b)-(2a2+a+b)
5x2-(3x2-2x+1)-(x+3)
7y2+(3x2-y)+(3x2+4y2)
1
(9x2-7xy+—x)+(6x2-2xy+5x)
5
18
(—xy-9y2+5)+(x2+—xy+2y2-8)
37
83
(xy+—y+—)-(xy-x-8)
74
(8y-8x+3z2)+(9y-3x-8z2)
(4k2-3k)-(4k2+4k-9)
(8a2+2a-3b)+(2a2-a+8b)
5x2+(7x2-9x+1)-(2x+8)
2y2-(x2+y)+(5x2+5y2)
8
(x2+9xy-—x)-(8x2+4xy-8x)
7
11
(—xy+2y2-6)-(x2-—xy+9y2+2)
48
24
(xy+—y+—)-(xy-x-1)
35
(2y-6x+3z2)-(2y+8x-8z2)
(7k2+2k)-(8k2-k+2)
(7a2+8a+5b)+(8a2+4a+7b)
4x2-(5x2-x+5)+(6x+3)
5y2-(4x2+y)+(4x2-6y2)
6
(9x2-8xy+—x)-(9x2+xy-6x)
5
42
(—xy-8y2-8)+(x2-—xy+5y2-1)
53
11
(xy+—y+—)+(xy+x-3)
78
(9y-9x-3z2)+(5y+3x+6z2)
(5k2+5k)-(4k2+6k-3)
(9a2-3a+5b)+(5a2-a+7b)
x2+(9x2-7x+8)+(2x+3)
3y2+(5x2+y)+(3x2+5y2)