七年级数学下册计算题大全209文档格式.docx
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七年级数学下册计算题大全209文档格式.docx
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84
(6y-7x+5z2)+(2y-9x-3z2)
(k2+8k)-(2k2-3k+7)
(5a2+7a+3b)+(4a2+7a+2b)
2x2-(5x2+8x+7)-(6x+4)
5y2+(8x2-y)-(3x2+3y2)
(5x2+3xy+—x)-(5x2+8xy-8x)
6
15
(—xy+5y2+9)-(x2-—xy-8y2-2)
64
16
(xy-—y+—)+(xy-x+3)
87
(3y-8x-3z2)+(2y+9x-6z2)
(3k2-k)-(7k2-8k+1)
(a2-8a-4b)+(5a2+8a+9b)
3x2+(6x2+8x-4)-(9x+8)
8y2+(3x2-y)+(9x2+3y2)
1
(7x2+8xy-—x)-(4x2-4xy-2x)
16
(—xy-5y2+4)+(x2-—xy+3y2-2)
55
17
(xy-—y-—)-(xy+x+6)
86
(6y-x-4z2)+(9y-6x-z2)
(k2+5k)+(6k2+k+5)
(a2-4a+9b)-(6a2+5a-b)
7x2+(5x2-3x-2)+(5x-7)
2y2+(6x2+y)-(x2-9y2)
(x2+xy+—x)-(6x2+7xy+7x)
7
(—xy+9y2+5)-(x2-—xy+5y2-7)
65
68
(xy+—y-—)-(xy-x+1)
57
(9y+9x-7z2)+(3y-9x-9z2)
(8k2+5k)+(4k2-6k-1)
(a2-2a-b)+(7a2+6a-4b)
5x2+(9x2-9x+6)-(x-6)
9y2+(6x2+y)-(7x2-2y2)
(2x2+8xy-—x)+(3x2-2xy-5x)
43
(—xy-5y2+3)+(x2+—xy+4y2+8)
54
12
(xy-—y-—)+(xy+x-3)
73
(2y-7x-7z2)-(7y+9x-4z2)
(2k2+2k)+(9k2-4k-2)
(4a2-7a-5b)-(5a2-5a+4b)
6x2-(6x2-3x+5)-(6x+5)
3y2+(9x2-y)-(x2-9y2)
(3x2+4xy+—x)+(8x2+9xy-2x)
3
19
(—xy+6y2+2)+(x2+—xy+4y2-4)
58
25
(xy+—y+—)-(xy+x-1)
36
(3y+x+5z2)+(6y+6x-3z2)
(5k2+6k)-(7k2+2k-3)
(a2-5a+2b)+(6a2+a+5b)
6x2-(6x2-6x+9)+(2x-7)
7y2+(7x2-y)-(9x2-7y2)
(2x2+3xy+—x)+(7x2+5xy-6x)
14
(—xy-8y2-3)+(x2+—xy+5y2+4)
53
61
(xy-—y-—)+(xy+x-8)
76
(8y+5x-7z2)+(6y-5x+4z2)
(2k2-5k)-(5k2+4k-2)
(4a2-4a+7b)-(9a2-9a-4b)
6x2-(4x2-4x-2)+(7x+9)
6y2-(8x2+y)-(x2+9y2)
(5x2+5xy+—x)+(8x2+4xy+5x)
11
(—xy+y2+5)+(x2-—xy-3y2+8)
56
59
(xy-—y+—)-(xy-x-1)
(2y+3x-7z2)-(3y+2x-7z2)
(4k2+2k)-(6k2-6k+8)
(6a2+5a-2b)-(6a2+9a+9b)
5x2+(4x2+2x-6)-(7x+6)
5y2+(9x2+y)-(6x2-6y2)
(x2+5xy-—x)+(x2+6xy-8x)
8
(—xy+5y2+3)-(x2-—xy-4y2-2)
87
(xy-—y+—)+(xy-x-4)
58
(5y+2x+9z2)-(3y-9x-5z2)
(7k2-3k)+(7k2+3k+4)
(8a2+7a+8b)+(7a2+6a-5b)
8x2-(4x2+2x-5)-(2x+5)
6y2+(2x2-y)-(5x2-9y2)
(2x2+8xy+—x)+(9x2+xy-3x)
(—xy-7y2+6)+(x2+—xy-7y2+1)
73
(xy+—y-—)-(xy-x+7)
88
(9y+3x-5z2)+(2y+8x-4z2)
(6k2+4k)-(5k2-6k+4)
(a2+3a+4b)+(8a2+a+9b)
8x2+(4x2-4x+8)+(5x+8)
3y2+(3x2-y)-(9x2+5y2)
(4x2-4xy+—x)-(5x2-xy-2x)
41
(—xy-7y2-2)+(x2-—xy-3y2-1)
91
(xy+—y-—)+(xy+x-4)
83
(3y+2x-4z2)-(8y-x-7z2)
(9k2+8k)-(k2+7k+1)
(4a2+6a+2b)-(5a2+8a+2b)
2x2-(3x2-2x+8)-(5x+4)
4y2-(4x2-y)-(3x2-8y2)
(4x2+2xy+—x)+(5x2+4xy-5x)
(—xy+8y2-4)-(x2-—xy+9y2-4)
77
(xy-—y-—)+(xy+x-5)
(3y-7x-8z2)+(4y-x-9z2)
(3k2+9k)-(7k2-3k+2)
(4a2+7a+8b)-(4a2-3a-5b)
8x2-(5x2+4x+1)-(5x+1)
6y2-(9x2-y)+(6x2+y2)
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- 七年 级数 下册 算题 大全 209