七年级数学下册计算题大全145.docx
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七年级数学下册计算题大全145
(8k2-8k)+(k2-4k+9)
(4a2+9a+7b)-(4a2-9a-5b)
5x2-(6x2+7x-3)-(3x+7)
5y2+(3x2-y)-(2x2-8y2)
9
(2x2-7xy+—x)+(6x2+3xy+2x)
8
24
(—xy+y2-2)+(x2+—xy-7y2+9)
35
17
(xy-—y+—)+(xy+x-5)
66
(8y-4x+6z2)-(7y+9x-3z2)
(5k2-4k)+(7k2+5k-2)
(3a2+5a-9b)+(9a2-8a+5b)
6x2+(x2+5x+5)-(4x-5)
3y2-(5x2-y)+(9x2+9y2)
9
(6x2+xy+—x)+(6x2+2xy-3x)
8
13
(—xy-5y2+6)-(x2+—xy+4y2+1)
74
92
(xy-—y-—)-(xy-x+2)
83
(5y+x-7z2)+(4y+2x+4z2)
(6k2+3k)+(8k2-k-3)
(6a2-5a+6b)-(6a2-3a-4b)
9x2-(8x2-7x+4)+(6x+4)
y2-(6x2+y)-(7x2+3y2)
7
(6x2+8xy+—x)-(6x2-8xy-2x)
8
14
(—xy+9y2-2)+(x2-—xy+3y2-3)
33
43
(xy-—y-—)-(xy+x+9)
34
(2y+8x-8z2)-(4y-4x-2z2)
(5k2-9k)-(3k2-7k+5)
(6a2+a+3b)+(9a2+3a+4b)
6x2-(4x2+3x+6)+(2x+1)
4y2+(8x2-y)+(6x2+y2)
6
(6x2-8xy-—x)-(7x2-6xy-6x)
5
12
(—xy+y2-1)-(x2+—xy-y2+2)
53
37
(xy-—y-—)+(xy+x+5)
46
(4y-x+6z2)+(2y+x+8z2)
(4k2+k)-(5k2+9k+7)
(4a2-8a+2b)+(2a2-5a-4b)
5x2-(4x2+x+2)-(7x+4)
7y2+(7x2+y)-(8x2-7y2)
2
(x2-6xy+—x)-(4x2+3xy+9x)
3
33
(—xy+9y2+2)-(x2-—xy-8y2+5)
44
77
(xy+—y-—)+(xy-x-9)
68
(5y+x+6z2)-(y+9x-4z2)
(4k2-5k)-(3k2-7k-9)
(2a2-a-b)+(2a2-2a-8b)
2x2+(7x2-4x+6)+(4x+8)
2y2-(5x2+y)+(9x2+4y2)
5
(x2-9xy-—x)-(4x2+xy-3x)
4
18
(—xy-6y2-1)-(x2+—xy+8y2-7)
37
28
(xy+—y-—)+(xy-x-4)
37
(2y+6x-4z2)+(6y+x-6z2)
(8k2-8k)+(4k2-k-8)
(3a2-7a+7b)-(5a2+a-4b)
2x2+(3x2+3x-4)-(9x-7)
4y2+(5x2-y)+(8x2+7y2)
7
(5x2-2xy-—x)-(8x2+8xy+3x)
8
15
(—xy-5y2-9)-(x2+—xy+9y2+1)
64
16
(xy+—y+—)+(xy+x+9)
35
(6y+x+9z2)-(7y-x+2z2)
(3k2-8k)+(8k2+5k-3)
(8a2+7a-3b)+(3a2+5a+8b)
8x2-(3x2+4x-6)+(3x+9)
6y2+(6x2-y)-(7x2-2y2)
2
(4x2+3xy+—x)+(6x2-4xy-x)
3
16
(—xy+6y2+7)+(x2-—xy+2y2+3)
35
11
(xy+—y-—)-(xy-x+2)
58
(7y-4x-z2)+(y+6x+9z2)
(4k2+8k)-(4k2-4k-8)
(8a2-7a-9b)-(7a2+3a+b)
2x2+(5x2-6x+6)+(8x-3)
2y2+(5x2+y)+(5x2+6y2)
4
(2x2-5xy+—x)-(5x2-3xy+9x)
5
61
(—xy+6y2+3)+(x2+—xy-6y2-5)
57
74
(xy-—y+—)+(xy-x-9)
83
(y+3x-6z2)+(y+9x-6z2)
(7k2-4k)-(8k2-8k-3)
(4a2+7a+2b)-(2a2-a-b)
8x2-(9x2-4x-9)+(4x-4)
4y2-(x2-y)+(x2+5y2)
7
(x2-2xy-—x)+(7x2+4xy+2x)
6
41
(—xy+5y2+9)-(x2+—xy+7y2+9)
53
67
(xy-—y+—)+(xy+x-7)
56
(3y-5x-z2)-(7y-5x+6z2)
(7k2-k)+(2k2+6k+6)
(9a2-9a-2b)+(7a2+9a+b)
7x2+(4x2-2x-8)-(6x-8)
y2+(x2-y)+(x2+6y2)
1
(x2+7xy-—x)+(8x2-xy+8x)
4
16
(—xy-9y2-4)+(x2-—xy-3y2+2)
35
81
(xy-—y+—)+(xy-x-9)
74
(y+3x+7z2)-(4y+6x+3z2)
(8k2-k)+(2k2-2k-1)
(a2+5a-8b)-(4a2+9a+4b)
9x2+(4x2-8x+9)+(9x+4)
5y2-(4x2+y)-(2x2-5y2)
5
(6x2-4xy-—x)-(2x2+xy-8x)
6
12
(—xy+y2-5)-(x2+—xy-y2+2)
53
21
(xy+—y+—)-(xy-x+1)
35
(y+5x-4z2)-(5y+7x-4z2)
(4k2+7k)-(2k2-7k-3)
(3a2+5a-5b)-(6a2-8a-9b)
7x2+(2x2-2x-2)+(3x-9)
4y2+(4x2-y)-(5x2+2y2)