七年级数学下册计算题大全195.docx
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七年级数学下册计算题大全195.docx
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七年级数学下册计算题大全195
(8k2-2k)+(6k2-5k-2)
(2a2-7a-8b)-(8a2+5a-5b)
5x2+(7x2+5x-9)-(2x+5)
8y2-(7x2-y)+(8x2+y2)
1
(3x2-2xy+—x)-(5x2+8xy+9x)
3
18
(—xy-5y2-9)+(x2+—xy+5y2-6)
87
11
(xy+—y-—)+(xy+x-5)
46
(4y-2x+7z2)-(4y-9x-3z2)
(k2-3k)+(7k2+9k+5)
(8a2-2a+8b)-(a2-2a+3b)
7x2+(3x2+6x+2)+(4x-9)
2y2-(2x2-y)+(9x2-7y2)
1
(6x2+2xy-—x)-(5x2-4xy-2x)
8
71
(—xy-2y2-2)-(x2+—xy-6y2+4)
88
12
(xy+—y+—)+(xy+x+9)
73
(7y-5x-9z2)+(9y+6x-6z2)
(7k2+3k)+(7k2+7k-6)
(9a2-a+6b)+(4a2-a-b)
6x2+(3x2+x-9)+(5x+6)
7y2-(5x2+y)+(8x2+4y2)
1
(5x2-5xy-—x)-(7x2-xy+9x)
6
15
(—xy-9y2-7)-(x2-—xy+y2-4)
36
15
(xy+—y+—)+(xy-x+3)
66
(9y-4x-7z2)-(y-5x+2z2)
(7k2+k)-(k2+5k+2)
(8a2-a-8b)+(5a2+7a+7b)
8x2+(x2+7x+1)-(5x+4)
3y2+(5x2-y)+(5x2-6y2)
4
(5x2+2xy+—x)-(4x2-2xy-2x)
3
17
(—xy+8y2-7)-(x2-—xy-y2+6)
56
78
(xy-—y-—)+(xy+x+5)
67
(3y-7x-7z2)+(5y-7x-7z2)
(9k2-9k)+(5k2-4k-5)
(3a2-a+3b)-(9a2+6a-4b)
5x2+(x2-2x-4)+(5x+9)
5y2-(6x2+y)-(2x2+2y2)
9
(8x2-8xy+—x)-(5x2+2xy-9x)
8
98
(—xy+4y2-1)-(x2+—xy-4y2+8)
87
74
(xy+—y+—)+(xy+x-4)
65
(7y-6x+4z2)+(3y+7x+4z2)
(k2-3k)-(5k2-2k-2)
(6a2+9a-3b)-(8a2+5a+8b)
x2-(2x2+6x-8)-(8x-5)
9y2-(x2+y)-(3x2+8y2)
4
(5x2+4xy+—x)+(2x2+9xy-5x)
3
57
(—xy-6y2-4)+(x2-—xy+5y2-1)
48
15
(xy+—y-—)+(xy+x-6)
64
(3y-7x-2z2)-(y-9x-z2)
(8k2-8k)-(7k2+k+4)
(8a2-9a+7b)-(7a2+4a+7b)
8x2+(5x2-8x+8)+(4x+8)
4y2+(x2-y)-(2x2-9y2)
2
(9x2-3xy+—x)+(5x2-7xy-4x)
3
71
(—xy+7y2-6)-(x2-—xy+2y2+7)
87
35
(xy+—y+—)+(xy-x-4)
46
(y+2x-8z2)-(9y+9x+7z2)
(5k2+2k)-(8k2+k-5)
(9a2+7a+5b)+(a2+5a-5b)
2x2+(6x2+9x-8)-(2x+1)
3y2+(8x2-y)-(6x2-3y2)
1
(8x2+4xy-—x)-(2x2+7xy+9x)
8
12
(—xy-3y2+7)+(x2-—xy+9y2-3)
83
16
(xy+—y+—)-(xy+x-4)
77
(3y+3x+7z2)+(6y+x+5z2)
(4k2-5k)-(5k2+2k+9)
(2a2-a+b)-(7a2+8a+6b)
6x2-(9x2+9x+5)-(3x+4)
2y2+(7x2+y)-(9x2+6y2)
5
(9x2-6xy-—x)-(2x2-2xy-3x)
6
14
(—xy-9y2+7)+(x2+—xy+6y2-2)
33
11
(xy-—y-—)-(xy+x-1)
63
(y-4x+5z2)-(6y+9x-8z2)
(3k2-5k)+(7k2+2k+4)
(4a2+9a-b)-(4a2-6a-2b)
4x2-(x2+7x+3)-(x+7)
5y2+(9x2+y)+(x2-7y2)
4
(8x2+7xy+—x)+(4x2+6xy-2x)
5
13
(—xy+5y2-3)-(x2+—xy+5y2+7)
34
91
(xy-—y+—)-(xy-x-5)
85
(8y-5x-3z2)+(6y-7x-9z2)
(9k2+9k)-(3k2-9k-9)
(3a2-9a+4b)-(9a2-4a-b)
6x2+(5x2-2x+5)-(2x+6)
7y2+(5x2+y)+(5x2+3y2)
2
(8x2-xy+—x)+(4x2+4xy-6x)
3
11
(—xy+2y2-9)+(x2-—xy-5y2+8)
33
11
(xy-—y-—)-(xy+x+9)
83
(y+9x+3z2)+(2y+6x+8z2)
(6k2+2k)-(4k2-k+7)
(8a2-6a+b)+(a2-a-b)
9x2+(8x2-5x-5)-(4x-4)
3y2+(2x2-y)-(x2-2y2)
6
(5x2-7xy-—x)+(3x2+6xy+x)
5
11
(—xy-4y2+8)+(x2+—xy+2y2-5)
45
11
(xy-—y+—)-(xy-x-4)
43
(2y-4x-8z2)-(7y+x+2z2)
(9k2+6k)+(k2-5k-3)
(6a2-3a+4b)+(5a2-7a+6b)
4x2-(8x2+9x-5)-(4x+1)
5y2+(9x2+y)+(3x2+8y2)
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