七年级数学下册计算题大全23Word文件下载.docx
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七年级数学下册计算题大全23Word文件下载.docx
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84
(y-7x-4z2)+(7y-3x-9z2)
(7k2+8k)+(3k2-7k+1)
(3a2-4a-7b)-(8a2-5a-9b)
x2-(5x2-4x+2)+(7x+9)
5y2+(4x2-y)-(4x2-6y2)
1
(6x2-4xy+—x)-(2x2-4xy+4x)
7
14
(—xy-2y2-8)+(x2+—xy+8y2+4)
43
52
(xy+—y+—)+(xy+x-8)
63
(4y-9x-6z2)+(5y+3x+7z2)
(3k2-8k)-(7k2+4k-5)
(a2-9a+8b)+(7a2+2a+2b)
3x2-(9x2-4x+2)+(8x-3)
3y2+(7x2-y)+(3x2+9y2)
(7x2-3xy+—x)-(8x2+4xy-6x)
57
(—xy+7y2+7)+(x2-—xy-6y2+9)
48
17
(xy-—y-—)-(xy-x+6)
86
(2y-4x-9z2)+(6y-4x+5z2)
(8k2-6k)-(6k2+4k+4)
(8a2-7a+4b)+(a2+5a-3b)
3x2-(8x2+x+7)+(8x-5)
9y2+(6x2-y)-(3x2-4y2)
(x2+8xy-—x)+(6x2-7xy-6x)
5
12
(—xy-6y2+1)-(x2+—xy+5y2-2)
41
(xy-—y+—)-(xy-x-6)
56
(5y-2x+4z2)-(5y-5x-5z2)
(k2+2k)-(3k2+2k+8)
(6a2+2a-3b)-(2a2-3a+5b)
6x2+(6x2+x-6)-(2x+8)
8y2-(5x2+y)+(8x2+6y2)
(3x2+2xy-—x)-(5x2-2xy-2x)
71
(—xy-6y2+4)-(x2+—xy-8y2+4)
88
65
(xy-—y+—)+(xy+x-2)
(8y+2x+4z2)-(7y-2x+9z2)
(5k2-4k)-(k2+7k-9)
(8a2+2a-b)+(7a2-3a+8b)
7x2+(5x2-x-7)+(5x-6)
4y2-(4x2+y)+(3x2-8y2)
(5x2-xy-—x)+(9x2-xy+3x)
17
(—xy-8y2-1)+(x2-—xy+4y2+5)
38
11
(xy+—y+—)+(xy+x+1)
33
(8y-2x-6z2)+(5y+8x+9z2)
(8k2-4k)+(9k2+8k+2)
(a2-3a+4b)+(9a2+5a+9b)
6x2-(8x2+6x+3)+(2x+3)
6y2-(2x2-y)-(5x2-9y2)
2
(4x2+3xy-—x)-(4x2-6xy-8x)
78
(—xy-6y2-9)+(x2-—xy+y2-1)
67
51
(xy-—y+—)-(xy+x-9)
47
(9y+5x-8z2)+(7y-2x-9z2)
(3k2-2k)+(6k2-6k-2)
(4a2-7a+3b)+(7a2+6a+8b)
6x2+(2x2+5x-2)-(9x+4)
2y2+(3x2+y)+(x2+2y2)
(5x2+8xy-—x)-(4x2-xy-x)
18
(—xy-2y2+8)+(x2+—xy-2y2+4)
66
(xy-—y+—)-(xy-x+1)
77
(8y-x-9z2)-(3y+2x-8z2)
(9k2-4k)+(9k2-9k+6)
(5a2+4a-9b)-(5a2+7a+3b)
9x2+(3x2-9x-6)-(7x-6)
9y2-(8x2+y)+(5x2+8y2)
(x2+xy+—x)+(x2-8xy+4x)
51
(—xy-7y2+5)-(x2+—xy+6y2-2)
44
(xy-—y+—)+(xy+x-5)
54
(6y-x+4z2)-(5y+6x-4z2)
(8k2-k)+(3k2-7k+7)
(5a2-6a-3b)+(a2+3a-3b)
2x2-(3x2-3x+5)-(x+7)
3y2-(5x2-y)+(5x2-4y2)
(7x2+7xy+—x)-(4x2-2xy+8x)
8
16
(—xy+9y2+5)+(x2+—xy-4y2-5)
87
18
(xy-—y-—)-(xy+x-6)
(8y-9x-5z2)-(9y-4x+z2)
(7k2+3k)+(5k2+5k+5)
(6a2-5a-3b)-(8a2-7a+5b)
9x2+(3x2-8x+6)-(8x+2)
6y2+(2x2+y)+(3x2-3y2)
(4x2+6xy+—x)-(3x2-3xy-9x)
6
(—xy+8y2-2)-(x2+—xy+4y2+2)
63
(xy-—y+—)-(xy-x-3)
(3y+6x+6z2)+(2y+9x+2z2)
(4k2+3k)-(5k2+9k+5)
(6a2-2a-3b)-(5a2-4a-6b)
6x2-(5x2-8x+8)+(9x+7)
6y2+(x2+y)-(4x2-6y2)
(8x2+9xy+—x)-(3x2-2xy+3x)
52
(—xy-4y2-6)-(x2-—xy+3y2+9)
(xy-—y+—)+(xy+x+5)
48
(8y-4x-5z2)-(6y+x-6z2)
(4k2+9k)-(6k2-2k+5)
(9a2-6a+5b)-(7a2-5a-8b)
x2+(4x2-3x-6)-(3x-1)
y2-(6x2-y)+(9x2-7y2)
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- 七年 级数 下册 算题 大全 23
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