七年级数学下册计算题大全98.docx
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七年级数学下册计算题大全98.docx
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七年级数学下册计算题大全98
8
(2x2+9xy-—x)+(6x2+8xy+9x)
7
15
(—xy+8y2+3)+(x2-—xy-9y2-3)
86
51
(xy+—y-—)+(xy-x+3)
46
(5y-8x-8z2)-(3y+2x+z2)
(2k2-5k)-(k2-5k-7)
(7a2+9a-3b)-(3a2+9a+3b)
x2+(2x2+4x-6)-(4x-8)
8y2+(6x2-y)+(6x2-7y2)
4
(4x2+7xy+—x)-(3x2+6xy+7x)
5
18
(—xy+3y2+3)+(x2-—xy+3y2+7)
47
35
(xy-—y+—)+(xy-x-9)
44
(4y-5x+4z2)+(5y+4x+3z2)
(3k2+4k)-(7k2+7k+9)
(4a2-5a-6b)-(4a2-2a+b)
7x2+(9x2+4x+2)+(9x-2)
3y2-(5x2+y)-(4x2-2y2)
4
(7x2+5xy-—x)+(x2-4xy-4x)
3
59
(—xy-3y2+8)-(x2+—xy+3y2-5)
68
99
(xy-—y+—)-(xy+x+4)
88
(2y-3x+z2)+(7y+4x-3z2)
(k2-4k)+(3k2-9k-9)
(3a2-a+7b)-(7a2+6a-8b)
5x2-(7x2+4x-1)+(9x-8)
9y2-(9x2+y)+(3x2-9y2)
5
(2x2+9xy+—x)+(8x2+xy-6x)
6
12
(—xy+5y2+2)+(x2+—xy+5y2+6)
73
71
(xy-—y+—)-(xy-x-4)
85
(7y-5x-z2)-(6y-x-3z2)
(7k2+5k)-(5k2-9k-8)
(2a2+4a-3b)+(8a2-5a-9b)
9x2+(9x2-8x+6)-(7x-5)
2y2+(9x2-y)-(2x2-6y2)
1
(x2+7xy+—x)+(3x2-9xy-3x)
3
17
(—xy+3y2-8)-(x2+—xy-6y2+1)
48
12
(xy-—y-—)-(xy-x+7)
63
(9y+7x+5z2)+(9y-8x+6z2)
(4k2+k)-(2k2-8k+5)
(3a2-2a-6b)-(5a2-4a+4b)
7x2+(3x2+8x+5)+(2x+6)
2y2+(8x2+y)+(2x2-9y2)
7
(8x2+2xy+—x)+(7x2-6xy+4x)
6
24
(—xy+6y2+3)+(x2-—xy-y2-5)
33
13
(xy+—y+—)-(xy+x-8)
44
(8y+x+7z2)+(7y-5x-4z2)
(4k2+3k)-(k2-5k-1)
(5a2-7a+5b)+(8a2-2a+5b)
3x2-(3x2+9x-5)+(6x-7)
6y2+(5x2+y)+(5x2+5y2)
4
(6x2+2xy-—x)-(7x2+4xy+7x)
5
18
(—xy-8y2-4)-(x2-—xy+4y2+6)
87
67
(xy-—y-—)+(xy+x+9)
58
(8y+4x+4z2)+(4y-2x-5z2)
(6k2-2k)+(9k2-4k+4)
(8a2-8a-3b)-(6a2-4a-7b)
9x2+(4x2+5x+4)+(7x+4)
9y2+(4x2+y)-(9x2-y2)
1
(x2-8xy-—x)+(3x2-9xy-2x)
8
11
(—xy-8y2+3)+(x2-—xy-2y2+9)
64
52
(xy+—y+—)+(xy+x+9)
63
(2y+3x+5z2)+(2y+9x+z2)
(k2-5k)+(8k2-7k-1)
(5a2-4a-5b)-(6a2-6a-b)
9x2-(x2-2x-7)-(x+2)
y2+(3x2-y)+(4x2-7y2)
6
(2x2+xy-—x)+(3x2-3xy+7x)
7
98
(—xy+4y2-9)-(x2-—xy-5y2-2)
87
14
(xy+—y+—)-(xy-x-6)
33
(2y+x+z2)-(3y+4x-3z2)
(7k2+6k)-(9k2-9k-4)
(9a2+2a+6b)-(4a2+7a-3b)
2x2-(6x2+x+4)+(9x-4)
9y2-(5x2-y)+(2x2-8y2)
1
(x2-3xy+—x)+(9x2+9xy+7x)
5
11
(—xy+9y2-9)+(x2-—xy-y2-7)
56
67
(xy-—y-—)-(xy+x+9)
58
(2y-x+z2)+(8y-9x-5z2)
(6k2+k)-(5k2+6k-1)
(7a2-2a+6b)+(2a2-4a+b)
4x2-(9x2+x-2)+(8x+3)
6y2-(9x2-y)+(7x2-9y2)
1
(6x2-8xy+—x)+(3x2-3xy-5x)
8
71
(—xy+6y2+1)-(x2-—xy+4y2+1)
68
18
(xy+—y+—)-(xy+x+6)
67
(y+8x+4z2)+(y-x-3z2)
(8k2+5k)-(9k2-7k-7)
(8a2+6a-8b)-(7a2-9a+7b)
5x2-(9x2-9x+7)-(7x-5)
8y2-(7x2+y)-(8x2-6y2)
1
(2x2+8xy-—x)+(3x2-xy-2x)
5
57
(—xy+8y2+3)+(x2+—xy-4y2+1)
48
16
(xy-—y+—)+(xy-x-1)
65
(6y+x+3z2)-(9y+9x+6z2)
(7k2-6k)+(k2-8k+8)
(5a2-5a+3b)+(8a2-7a-7b)
3x2-(4x2-8x+3)-(6x-7)
8y2+(5x2+y)+(2x2-8y2)
4
(8x2+9xy+—x)+(7x2-9xy-6x)
5
76
(—xy+8y2-2)+(x2-—xy-3y2-6)
87
51
(xy-—y+—)-(xy-x-9)
48
(3y-9x-6z2)-(y+5x-8z2)
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