七年级数学下册计算题大全157Word格式.docx
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(8y+3x+3z2)-(5y+3x+7z2)
(7k2+4k)-(k2-9k+3)
(4a2-8a+9b)+(5a2+4a+b)
3x2-(8x2-8x+5)+(9x+6)
9y2+(9x2+y)-(2x2+3y2)
4
(9x2-9xy-—x)+(6x2+6xy+5x)
3
27
(—xy+7y2-2)+(x2+—xy+3y2+9)
38
15
(xy+—y+—)+(xy-x-6)
46
(8y+3x-z2)-(8y-6x-5z2)
(k2+2k)-(5k2+5k-5)
(a2+7a-8b)-(5a2+6a-3b)
6x2+(4x2+2x+7)+(7x+9)
9y2-(3x2+y)+(6x2-9y2)
(x2-8xy-—x)+(4x2-2xy-4x)
77
(—xy-y2+4)+(x2+—xy-5y2+4)
88
27
(xy+—y-—)-(xy-x+6)
36
(4y+3x-5z2)+(4y+x-7z2)
(2k2+9k)-(9k2+8k-3)
(3a2+9a-3b)+(5a2-7a+6b)
x2-(3x2+9x+5)-(4x-7)
8y2-(6x2+y)-(2x2+8y2)
(5x2-5xy+—x)+(8x2+5xy+3x)
46
(—xy+2y2+9)+(x2+—xy+4y2+7)
37
47
(xy+—y+—)+(xy-x+9)
38
(6y-4x-z2)-(6y-3x+5z2)
(5k2-9k)-(k2-6k+2)
(4a2-8a+4b)+(2a2-5a+8b)
2x2+(4x2-x-9)-(3x+4)
3y2+(8x2+y)+(6x2+9y2)
(6x2-6xy-—x)-(7x2-5xy-7x)
5
41
(—xy+5y2-7)+(x2-—xy-2y2-2)
33
71
(xy+—y-—)+(xy+x+9)
65
(y-7x+2z2)+(6y-9x+6z2)
(7k2+4k)-(8k2+5k-3)
(9a2-9a-2b)+(9a2+2a-b)
9x2+(x2+3x+2)+(6x+6)
3y2-(9x2-y)-(8x2-3y2)
(7x2-9xy+—x)+(x2-6xy+x)
15
(—xy-2y2-9)+(x2-—xy-8y2-7)
14
(xy-—y+—)-(xy-x-4)
35
(9y+2x-3z2)-(2y-x+5z2)
(2k2+7k)+(9k2+3k+2)
(5a2-6a-2b)-(7a2+2a+8b)
4x2-(3x2-x+4)+(3x-9)
5y2+(5x2-y)+(4x2+3y2)
(8x2+xy+—x)-(6x2-xy-5x)
13
(—xy-5y2-4)+(x2+—xy+3y2-8)
34
18
(xy-—y+—)-(xy+x-9)
87
(9y+6x+5z2)-(9y+4x-5z2)
(9k2+7k)-(2k2+k+2)
(4a2-7a+6b)+(7a2-4a-8b)
x2-(8x2+4x-3)-(9x+3)
6y2+(8x2+y)-(2x2-3y2)
(6x2-4xy-—x)-(4x2+7xy-9x)
74
(—xy+6y2+7)-(x2-—xy-2y2-8)
(xy-—y-—)+(xy-x+9)
73
(5y-x-8z2)+(7y+4x+2z2)
(2k2+k)+(2k2+8k+7)
(8a2+4a-9b)-(a2+3a-6b)
8x2-(2x2-6x+6)-(8x+5)
3y2-(8x2-y)+(x2-3y2)
2
(9x2-8xy-—x)-(3x2+9xy+2x)
16
(—xy-3y2-6)+(x2-—xy+5y2+2)
11
(xy+—y-—)+(xy-x-5)
63
(3y+2x+z2)+(4y+5x-4z2)
(8k2-2k)+(8k2-9k+2)
(6a2+3a-7b)-(7a2+9a-2b)
9x2+(6x2+6x+8)+(3x-4)
9y2-(4x2-y)+(2x2+2y2)
(9x2+xy+—x)-(x2-9xy+2x)
11
(—xy-5y2-5)-(x2+—xy+9y2+5)
44
(xy-—y-—)+(xy+x-7)
55
(y-2x-6z2)+(6y-7x-2z2)
(7k2-9k)+(3k2+3k+8)
(4a2-2a+5b)-(5a2+7a-2b)
5x2+(2x2-3x+9)-(5x+4)
y2-(6x2+y)+(8x2-8y2)
9
(3x2-2xy+—x)-(9x2+4xy+8x)
8
61
(—xy+7y2+6)+(x2-—xy-y2-5)
67
(xy-—y+—)+(xy-x+3)
56
(5y-6x+9z2)-(6y+7x+9z2)
(8k2-8k)-(3k2+9k+1)
(5a2-7a-8b)+(9a2-6a-6b)
4x2+(9x2+2x-1)+(7x+5)
6y2-(x2+y)+(9x2-y2)
(3x2-7xy-—x)+(5x2+7xy-3x)
19
(—xy-2y2-4)+(x2+—xy+6y2-1)
75
(xy+—y+—)+(xy+x-6)
66
(5y-2x+4z2)+(y-8x-2z2)
(8k2+5k)+(3k2-8k-1)
(7a2+8a+7b)-(4a2+2a+9b)
6x2-(2x2+3x+7)-(6x+1)
2y2-(5x2-y)-(7x2+8y2)