七年级数学下册计算题大全227.docx
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七年级数学下册计算题大全227
(9k2+5k)+(6k2-7k+2)
(6a2-8a+4b)-(3a2+9a-6b)
9x2-(8x2-5x+6)+(7x-5)
3y2-(7x2+y)-(5x2+6y2)
1
(6x2-9xy+—x)-(6x2-8xy-7x)
6
41
(—xy+8y2+7)+(x2+—xy+2y2-1)
36
13
(xy+—y-—)-(xy-x-2)
84
(2y-4x-6z2)-(2y-2x+5z2)
(7k2+7k)-(8k2+5k+6)
(2a2+a+6b)-(9a2-6a-4b)
8x2+(4x2+3x+7)-(5x+5)
6y2+(8x2-y)-(8x2+7y2)
1
(8x2+9xy-—x)+(5x2-7xy+8x)
5
72
(—xy+y2-8)+(x2-—xy-5y2+6)
83
24
(xy+—y+—)-(xy+x+8)
35
(y-5x+7z2)+(9y-2x-2z2)
(4k2+6k)-(8k2-6k+2)
(3a2-7a-7b)-(7a2-2a-9b)
6x2-(7x2+6x-2)-(7x+6)
4y2-(7x2+y)-(5x2+y2)
5
(3x2-4xy-—x)-(8x2+3xy-3x)
4
15
(—xy-8y2-5)-(x2-—xy+y2+8)
36
41
(xy-—y-—)-(xy+x-9)
33
(y+8x-9z2)+(6y-5x-6z2)
(8k2+8k)+(8k2+k-6)
(a2-8a-5b)-(7a2+4a-6b)
7x2+(7x2-9x-5)+(x-2)
4y2+(9x2+y)-(5x2+6y2)
3
(9x2-3xy+—x)-(9x2+3xy-5x)
4
21
(—xy+7y2-5)+(x2+—xy+8y2+2)
34
71
(xy+—y+—)+(xy+x-7)
83
(6y-x+3z2)-(9y+4x+5z2)
(4k2+7k)+(4k2+4k-9)
(8a2-6a+5b)+(a2+3a+9b)
3x2-(2x2+8x+2)-(5x+6)
9y2-(9x2+y)+(9x2+y2)
5
(3x2+6xy+—x)+(4x2+xy-6x)
6
64
(—xy-3y2+8)-(x2+—xy-9y2+8)
53
11
(xy-—y+—)-(xy+x-1)
64
(5y+3x+2z2)+(8y+4x-6z2)
(k2+7k)-(2k2-5k+9)
(6a2+5a-9b)+(9a2-3a-3b)
x2+(8x2+2x-8)-(9x+3)
y2+(5x2+y)-(5x2+5y2)
1
(2x2-xy-—x)-(x2-7xy+9x)
4
11
(—xy+3y2+6)-(x2-—xy-4y2-2)
76
11
(xy-—y-—)-(xy-x-4)
64
(9y-4x-7z2)+(3y-9x-z2)
(5k2-k)+(2k2-k+9)
(2a2+3a-4b)-(9a2-a+3b)
3x2+(7x2+2x-6)-(4x-4)
5y2-(3x2-y)+(2x2+4y2)
6
(6x2+6xy-—x)-(6x2-4xy-2x)
5
12
(—xy+y2-1)-(x2+—xy+9y2+1)
43
48
(xy+—y+—)+(xy+x-6)
37
(4y+8x-3z2)-(6y-5x+8z2)
(7k2-4k)+(k2-3k-4)
(8a2+6a-2b)-(9a2-a-8b)
8x2-(2x2+2x+5)+(3x-3)
6y2-(2x2-y)+(x2+6y2)
1
(3x2-4xy+—x)+(4x2+4xy-4x)
8
56
(—xy-4y2+7)+(x2-—xy-3y2+8)
47
16
(xy-—y-—)-(xy+x+7)
77
(2y-5x-z2)+(6y-2x-5z2)
(4k2+9k)+(k2-6k-9)
(4a2+6a-9b)-(3a2-8a+2b)
3x2+(6x2-4x-9)+(9x+4)
y2+(3x2+y)-(6x2-2y2)
1
(3x2-4xy-—x)-(8x2+8xy+4x)
5
61
(—xy-9y2-6)+(x2-—xy+8y2+1)
74
15
(xy+—y-—)+(xy+x-8)
86
(6y+3x-7z2)-(8y-5x-6z2)
(4k2+5k)-(8k2-3k+7)
(7a2-7a+9b)-(4a2+4a-8b)
7x2-(7x2-6x+7)-(8x+7)
7y2-(6x2-y)+(3x2+6y2)
7
(4x2-2xy+—x)-(5x2+4xy+5x)
8
14
(—xy+9y2-2)+(x2+—xy+7y2-4)
45
11
(xy+—y-—)-(xy-x-4)
33
(8y-6x-7z2)+(8y+6x+9z2)
(3k2+3k)+(4k2-3k-1)
(4a2+3a-b)-(a2+4a+5b)
5x2-(2x2-7x-3)+(4x+6)
2y2-(8x2-y)+(6x2+8y2)
1
(6x2-4xy+—x)-(4x2-6xy+4x)
3
61
(—xy-6y2+7)-(x2-—xy+y2+1)
55
77
(xy+—y-—)+(xy-x-2)
66
(8y+4x-z2)-(3y-x-9z2)
(2k2+5k)+(k2-4k-6)
(2a2+5a-5b)+(8a2-3a+8b)
4x2-(6x2+2x+6)-(x-5)
7y2+(4x2+y)+(4x2-y2)
4
(6x2-9xy-—x)+(5x2-8xy+5x)
3
15
(—xy+3y2-7)-(x2-—xy-y2-2)
56
17
(xy+—y-—)-(xy-x+3)
88
(3y-2x-7z2)-(3y-4x-5z2)
(4k2+7k)+(7k2-4k+9)
(5a2-2a+8b)+(2a2+8a-5b)
5x2-(5x2+4x+9)-(9x+8)
6y2+(6x2+y)+(6x2+6y2)