七年级数学下册计算题大全47.docx
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七年级数学下册计算题大全47.docx
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七年级数学下册计算题大全47
(9k2+5k)+(8k2-7k+4)
(2a2-a-7b)+(7a2+5a+2b)
8x2-(x2-5x-7)-(x-6)
6y2+(9x2-y)-(2x2-6y2)
1
(5x2+3xy+—x)+(4x2-xy+2x)
4
19
(—xy+7y2+9)+(x2-—xy-6y2-9)
68
74
(xy-—y+—)-(xy+x-8)
85
(7y-9x-3z2)+(5y+8x+3z2)
(5k2-2k)-(3k2+6k-9)
(7a2+2a-b)+(6a2+8a-3b)
7x2-(5x2+4x+3)+(7x-7)
7y2+(7x2+y)-(4x2+5y2)
2
(3x2-xy+—x)-(4x2-4xy-4x)
3
69
(—xy-7y2+7)-(x2+—xy+7y2+3)
58
11
(xy-—y+—)-(xy+x-9)
66
(8y+2x-5z2)+(8y-2x+3z2)
(4k2-6k)-(2k2+6k-8)
(2a2-7a-8b)-(9a2-8a+9b)
7x2-(2x2+8x-3)-(6x-1)
8y2+(7x2-y)+(5x2+2y2)
1
(4x2-7xy-—x)+(3x2+5xy-9x)
4
16
(—xy+9y2+1)-(x2+—xy+9y2+2)
67
47
(xy+—y-—)-(xy-x+3)
36
(6y+2x-6z2)-(y+5x-7z2)
(7k2-9k)+(5k2+k+9)
(6a2-a+9b)+(a2-9a-3b)
5x2-(7x2-x+7)+(7x-4)
9y2+(3x2+y)+(7x2-6y2)
1
(8x2+8xy-—x)-(9x2+6xy-7x)
4
14
(—xy+2y2+5)-(x2-—xy-5y2-3)
85
11
(xy+—y-—)-(xy-x+1)
78
(y+2x-7z2)+(3y+6x+5z2)
(9k2-5k)-(8k2-8k-1)
(7a2-4a+7b)-(9a2-9a+6b)
3x2+(3x2-4x-9)-(4x-7)
8y2-(3x2-y)+(9x2+y2)
6
(6x2-9xy-—x)-(7x2+7xy-5x)
7
67
(—xy-5y2+5)-(x2-—xy-7y2-3)
58
85
(xy-—y+—)-(xy-x-4)
76
(y+5x+7z2)+(9y+3x+z2)
(7k2-3k)+(k2-8k+4)
(9a2+2a-b)-(2a2+6a-6b)
7x2+(8x2+7x-1)+(8x+2)
8y2+(6x2-y)-(2x2+6y2)
1
(4x2-4xy+—x)-(4x2-4xy-2x)
7
98
(—xy-8y2+5)-(x2-—xy-5y2+8)
87
94
(xy-—y-—)+(xy-x+7)
85
(6y+4x-9z2)-(6y+6x+8z2)
(8k2+3k)-(5k2-6k-3)
(2a2-3a-3b)-(6a2-8a-3b)
5x2+(5x2-6x-1)+(4x+2)
7y2-(x2-y)+(5x2+7y2)
6
(x2+8xy-—x)+(8x2-3xy+3x)
7
84
(—xy+6y2+4)+(x2+—xy+y2+5)
75
18
(xy+—y+—)-(xy+x-8)
57
(8y-8x-6z2)+(9y-2x-2z2)
(2k2+5k)-(9k2-2k-2)
(2a2+8a-b)-(6a2-5a+5b)
9x2-(6x2-x+8)+(5x-2)
7y2+(6x2+y)+(8x2+9y2)
1
(9x2-3xy+—x)-(6x2+2xy+6x)
7
17
(—xy+8y2-9)-(x2-—xy-y2-6)
36
64
(xy+—y-—)-(xy-x+5)
73
(9y-8x+7z2)+(y-2x+5z2)
(9k2-2k)-(5k2-8k+3)
(7a2-5a+9b)-(7a2-9a+9b)
3x2+(3x2+4x-1)-(5x-3)
3y2+(x2+y)-(x2+4y2)
1
(2x2-9xy-—x)+(x2-3xy-x)
3
14
(—xy+3y2+3)+(x2+—xy-2y2+7)
53
15
(xy+—y+—)-(xy+x+1)
36
(8y+2x+z2)-(4y-8x-2z2)
(k2-4k)-(2k2+5k-2)
(5a2-2a+2b)+(9a2-5a-5b)
8x2+(5x2-7x-3)-(5x+1)
9y2+(2x2-y)+(5x2+y2)
6
(4x2+7xy-—x)-(8x2+5xy-8x)
7
11
(—xy+8y2-1)-(x2+—xy-3y2-1)
34
41
(xy-—y-—)-(xy-x+3)
38
(5y+x-7z2)+(5y-5x+3z2)
(3k2-k)+(k2+8k+3)
(5a2-9a+6b)+(4a2+a+3b)
4x2-(3x2-4x+1)-(4x-9)
2y2-(4x2-y)+(5x2-y2)
1
(x2+3xy-—x)-(6x2-9xy+5x)
8
31
(—xy-3y2+8)-(x2+—xy-4y2+6)
44
13
(xy+—y+—)-(xy-x-9)
84
(4y-x+3z2)-(y-x-3z2)
(4k2-3k)+(2k2-5k-4)
(2a2+a-4b)+(6a2-4a-8b)
8x2+(9x2+x+4)-(4x-7)
y2+(9x2+y)-(8x2-5y2)
1
(8x2+4xy-—x)+(5x2+xy+6x)
4
15
(—xy-7y2-4)+(x2-—xy+7y2-4)
46
31
(xy-—y+—)-(xy+x-9)
46
(3y-3x-2z2)-(3y-7x-z2)
(5k2-5k)-(k2+2k+7)
(7a2+4a-3b)+(2a2+5a+6b)
9x2+(5x2+4x+7)-(9x-3)
8y2+(4x2-y)+(5x2+y2)
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