七年级数学下册计算题大全179Word下载.docx
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(y+5x-4z2)-(3y+x-4z2)
(3k2-6k)-(7k2+5k+6)
(3a2-4a+3b)+(7a2-2a+b)
7x2-(8x2+x-3)+(2x+9)
2y2+(6x2+y)-(8x2-2y2)
(3x2-3xy+—x)-(2x2-9xy-4x)
18
(—xy+4y2+7)-(x2-—xy+9y2+6)
87
51
(xy-—y+—)+(xy+x-4)
67
(9y+2x-z2)-(y+3x+6z2)
(3k2-k)+(2k2-3k-9)
(6a2-8a+5b)-(8a2+4a+4b)
3x2+(6x2+x-3)+(8x-3)
6y2-(8x2+y)-(5x2+9y2)
7
(6x2+8xy+—x)-(2x2-2xy-6x)
6
76
(—xy-5y2+1)+(x2-—xy+8y2+9)
85
46
(xy-—y+—)-(xy+x-9)
57
(6y-4x+7z2)+(y+x-3z2)
(4k2+6k)-(2k2+8k+2)
(9a2-8a+b)-(4a2+4a-8b)
x2-(x2+x-6)+(2x+6)
8y2-(3x2-y)+(9x2+3y2)
(8x2-6xy-—x)+(x2-9xy+3x)
91
(—xy-8y2-5)+(x2-—xy-3y2+3)
86
92
(xy+—y-—)-(xy-x-3)
83
(4y-5x-7z2)-(3y+8x-5z2)
(7k2-k)-(2k2-7k-2)
(a2+2a-b)+(7a2-3a-b)
5x2-(7x2+x-2)+(9x+9)
7y2-(3x2-y)-(3x2+2y2)
(9x2+4xy+—x)-(5x2-7xy-3x)
75
(—xy-9y2-9)+(x2-—xy-5y2-1)
74
(xy-—y-—)-(xy-x-5)
85
(2y-2x+8z2)-(9y-x-5z2)
(8k2-k)-(8k2-3k-3)
(7a2-9a-2b)+(8a2+3a-4b)
x2-(9x2+x+8)+(3x-8)
5y2+(6x2+y)+(7x2+5y2)
(8x2-5xy+—x)+(5x2+xy+2x)
8
19
(—xy+8y2-4)+(x2-—xy+5y2+5)
78
11
(xy+—y-—)+(xy-x-2)
36
(y-8x+8z2)-(6y+8x-z2)
(7k2+k)-(9k2-7k+5)
(4a2-2a-2b)-(9a2-a-6b)
7x2+(4x2-6x-2)+(8x+4)
5y2+(7x2-y)-(6x2+9y2)
(2x2-3xy-—x)+(2x2-6xy+8x)
(—xy-2y2+7)-(x2-—xy+8y2-4)
68
17
(xy+—y+—)+(xy-x-9)
58
(y-x-z2)+(9y-3x+8z2)
(5k2-6k)+(3k2-4k-9)
(7a2+9a-5b)+(9a2+7a+7b)
4x2-(7x2+9x-4)+(7x-7)
7y2+(7x2-y)+(5x2-6y2)
(2x2+7xy+—x)+(7x2-3xy-7x)
31
(—xy-8y2+2)+(x2-—xy-9y2-6)
45
(xy+—y-—)-(xy-x+4)
63
(5y-7x-8z2)-(5y+6x-4z2)
(k2+8k)-(8k2+3k+8)
(2a2-7a+5b)-(2a2+3a-7b)
7x2+(9x2-6x+5)-(9x-6)
2y2-(2x2+y)-(6x2+2y2)
2
(6x2+8xy+—x)+(9x2-2xy+7x)
3
82
(—xy-2y2-4)+(x2-—xy+8y2-5)
73
91
(xy-—y-—)-(xy+x+5)
84
(2y-3x+4z2)+(y+5x+9z2)
(5k2+6k)-(3k2+2k+8)
(8a2-7a+7b)+(8a2+a-6b)
x2+(5x2-5x-8)+(5x+2)
8y2+(4x2-y)+(x2-5y2)
(2x2+5xy+—x)-(2x2+4xy+2x)
41
(—xy+2y2-2)+(x2+—xy-4y2+3)
33
(xy+—y+—)-(xy+x-3)
(y+6x-5z2)-(7y-9x+6z2)
(8k2-8k)-(7k2-7k-4)
(5a2+8a-8b)-(9a2+8a-8b)
x2-(9x2+2x+3)+(5x-9)
7y2-(9x2+y)-(5x2-5y2)
(8x2-3xy-—x)-(8x2+2xy-x)
12
(—xy-5y2-8)-(x2+—xy+4y2+2)
18
(xy-—y+—)+(xy+x+6)
77
(8y+4x-z2)-(8y+6x-7z2)
(8k2+4k)-(6k2+4k-8)
(2a2+5a-6b)-(5a2+a+5b)
2x2+(9x2+2x-1)-(4x+9)
9y2+(5x2+y)-(x2-7y2)
(4x2-5xy+—x)-(4x2-2xy-9x)
16
(—xy+6y2+8)-(x2+—xy+8y2+4)
57
16
(xy-—y-—)-(xy-x-9)
75
(3y+x+7z2)+(3y-8x+z2)
(8k2-3k)-(k2+2k-1)
(9a2-8a-b)+(5a2+7a-4b)
4x2+(4x2-2x-9)+(2x+2)
y2-(7x2-y)-(6x2-2y2)