七年级数学下册计算题大全25文档格式.docx
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七年级数学下册计算题大全25文档格式.docx
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44
(2y+6x-6z2)-(7y+6x-6z2)
(3k2-9k)-(7k2-8k+5)
(6a2-6a-6b)-(9a2-7a-2b)
7x2+(2x2-5x+9)-(5x+5)
6y2+(x2+y)-(9x2+y2)
9
(4x2-xy+—x)+(2x2-3xy-7x)
51
(—xy+5y2+5)-(x2+—xy-y2-8)
48
17
(xy+—y+—)+(xy-x-7)
36
(7y+2x-6z2)-(3y-x-2z2)
(8k2+8k)+(8k2-9k+2)
(2a2+4a-2b)-(7a2+5a-5b)
2x2+(4x2+6x-9)-(2x-1)
7y2+(9x2-y)+(2x2-9y2)
(3x2+9xy-—x)+(9x2-7xy+8x)
12
(—xy+4y2-2)-(x2-—xy-y2-2)
43
(xy-—y-—)-(xy-x-5)
78
(8y+x+6z2)+(9y-3x-7z2)
(5k2-k)+(7k2+7k+3)
(2a2-2a+8b)+(a2-9a+5b)
2x2+(5x2-3x+3)+(6x+5)
y2+(5x2-y)-(7x2-3y2)
4
(7x2+8xy+—x)+(x2+6xy+4x)
3
35
(—xy-6y2-5)+(x2+—xy-3y2+7)
44
(xy-—y+—)-(xy-x+8)
45
(2y-5x-6z2)+(8y+8x+7z2)
(k2-2k)-(8k2+5k-9)
(9a2-9a+4b)+(3a2-a-6b)
6x2-(3x2+3x-4)-(8x+7)
9y2-(4x2-y)+(7x2-3y2)
6
(8x2-xy+—x)-(3x2-7xy+x)
7
47
(—xy+9y2-1)+(x2-—xy+y2-4)
38
77
(xy-—y-—)-(xy-x-7)
66
(8y+3x+2z2)+(7y-7x+9z2)
(k2-3k)-(3k2-3k-2)
(5a2+4a-b)+(a2-6a+7b)
3x2-(8x2-7x-6)+(3x+7)
y2+(5x2-y)-(3x2+y2)
(8x2-3xy-—x)+(6x2-5xy-9x)
11
(—xy+9y2+4)-(x2-—xy+2y2+9)
73
31
(xy+—y+—)-(xy-x-2)
48
(y-6x+5z2)-(4y-8x-9z2)
(k2-2k)+(3k2+3k-8)
(8a2+9a-2b)-(4a2+4a+4b)
7x2-(6x2-3x-9)-(5x-1)
5y2-(7x2-y)-(9x2+7y2)
5
(x2-5xy-—x)-(6x2-7xy+4x)
(—xy+6y2+2)+(x2-—xy-4y2-7)
74
55
(xy-—y+—)-(xy+x-1)
(7y+3x-6z2)+(y+6x-9z2)
(3k2-2k)-(4k2+7k+8)
(8a2-6a+9b)-(3a2+5a+8b)
5x2-(4x2-6x-8)-(3x-1)
8y2+(7x2+y)-(4x2+6y2)
(4x2-xy-—x)+(3x2+9xy+4x)
64
(—xy-6y2-5)-(x2+—xy-6y2-4)
75
13
(xy+—y-—)-(xy+x+6)
84
(5y+2x+7z2)-(7y+7x-9z2)
(5k2-k)+(5k2-8k-6)
(4a2-5a+6b)-(5a2-7a-5b)
7x2+(5x2+4x+1)-(7x+5)
5y2-(2x2+y)+(x2-3y2)
(7x2+9xy+—x)+(6x2-3xy+4x)
(—xy-7y2-2)+(x2-—xy-2y2+8)
66
(xy-—y-—)-(xy-x-6)
(2y-7x+5z2)+(y+x+2z2)
(k2-5k)-(6k2-4k+7)
(a2+3a-7b)-(a2-8a-8b)
5x2+(7x2+9x+9)-(8x-3)
9y2-(4x2+y)+(4x2-7y2)
(4x2+xy+—x)-(2x2-6xy-2x)
(—xy+8y2+6)-(x2-—xy+y2-9)
19
(xy-—y+—)-(xy+x-5)
(2y-5x-9z2)+(y+x+7z2)
(5k2-8k)-(4k2+6k-2)
(8a2+6a+8b)-(a2-2a-6b)
7x2-(4x2-7x-6)-(2x-3)
4y2-(6x2+y)-(x2+8y2)
(2x2-5xy+—x)+(2x2+5xy-2x)
54
(—xy-2y2-8)+(x2+—xy+y2-4)
65
(xy+—y+—)-(xy-x+3)
53
(7y+9x+7z2)-(y+6x+3z2)
(9k2+8k)-(2k2-7k+2)
(8a2+5a+5b)-(8a2+a-7b)
4x2+(9x2+3x-6)+(x-6)
2y2+(x2+y)+(4x2-6y2)
(9x2+4xy-—x)+(5x2+5xy-7x)
24
(—xy+y2-4)+(x2+—xy-7y2-6)
46
(xy+—y-—)+(xy+x+1)
(3y+5x-8z2)-(7y+4x+3z2)
(k2-3k)-(9k2+7k-2)
(9a2-7a-3b)+(2a2+9a+5b)
3x2+(6x2+3x-3)-(3x-5)
5y2-(3x2+y)+(8x2+7y2)
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- 七年 级数 下册 算题 大全 25