七年级数学下册计算题大全247.docx
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七年级数学下册计算题大全247
(5k2-5k)-(4k2-6k+5)
(2a2-3a+8b)-(3a2-a+2b)
5x2-(9x2+2x-8)-(7x-1)
8y2-(5x2-y)+(4x2-5y2)
7
(5x2+2xy+—x)-(x2+7xy+3x)
8
44
(—xy-2y2-4)+(x2+—xy+8y2-2)
35
35
(xy-—y-—)-(xy-x+5)
46
(4y-7x+4z2)+(7y+4x-8z2)
(5k2-8k)-(5k2-6k-6)
(2a2-4a-9b)-(2a2+2a-8b)
8x2+(4x2-5x-4)-(5x+5)
5y2+(x2+y)+(8x2+6y2)
3
(9x2-xy-—x)-(8x2-xy-9x)
4
71
(—xy+4y2+7)+(x2+—xy+9y2-4)
84
61
(xy+—y-—)+(xy+x+3)
56
(6y+5x-4z2)-(3y+7x+2z2)
(6k2+k)-(2k2-3k-3)
(8a2-7a-5b)+(9a2+3a-4b)
9x2+(6x2-x+1)-(2x+9)
8y2+(6x2+y)+(9x2+3y2)
9
(5x2+7xy-—x)-(7x2-xy-7x)
8
71
(—xy-2y2-5)-(x2-—xy+y2-5)
84
14
(xy-—y+—)-(xy+x+3)
33
(9y-7x-2z2)-(2y-x-6z2)
(k2-k)+(3k2+7k+4)
(a2+4a+7b)+(8a2+7a+3b)
7x2-(9x2+8x-7)+(2x+8)
7y2-(x2-y)-(4x2+3y2)
1
(6x2+6xy-—x)+(8x2-9xy-2x)
3
69
(—xy+9y2+7)+(x2-—xy-8y2-5)
78
61
(xy-—y+—)-(xy+x+6)
74
(3y-6x+3z2)-(6y-4x-5z2)
(2k2+8k)-(k2+6k-5)
(4a2+7a-4b)+(6a2-7a+6b)
6x2+(x2-9x+2)-(x-8)
2y2+(x2-y)-(5x2-5y2)
7
(3x2+4xy+—x)-(4x2+5xy+9x)
6
18
(—xy-2y2+6)-(x2-—xy-4y2-8)
57
11
(xy+—y+—)-(xy-x+3)
83
(4y-3x+4z2)-(9y-4x-8z2)
(5k2+6k)+(k2-2k+3)
(5a2-a-4b)-(8a2-2a-6b)
5x2-(9x2+3x-7)+(7x-1)
y2-(7x2+y)+(x2+4y2)
1
(5x2-3xy-—x)+(8x2+4xy-7x)
5
11
(—xy-5y2-9)-(x2+—xy+y2+1)
53
64
(xy+—y+—)+(xy+x-7)
73
(y+6x+5z2)-(9y-7x-6z2)
(5k2+7k)+(7k2+4k-6)
(7a2-2a+3b)-(a2+7a-8b)
4x2+(3x2+7x-4)-(x+1)
9y2+(6x2+y)+(4x2-2y2)
6
(2x2+4xy+—x)-(3x2-3xy-x)
7
11
(—xy+9y2-3)+(x2+—xy-5y2-9)
65
16
(xy+—y+—)-(xy-x-9)
47
(3y-4x+6z2)-(5y+5x-2z2)
(3k2-5k)-(7k2-8k+4)
(6a2+5a-3b)+(3a2+2a+7b)
8x2-(4x2+4x+4)+(9x-1)
7y2+(2x2-y)+(x2-5y2)
4
(2x2-7xy-—x)+(9x2+3xy+9x)
5
15
(—xy-6y2+3)-(x2-—xy+9y2+6)
46
15
(xy-—y+—)+(xy-x-9)
54
(6y+3x-9z2)+(2y-5x+9z2)
(k2-k)+(8k2+5k-3)
(3a2-4a-b)-(6a2+6a-4b)
2x2-(5x2+3x+3)+(2x+8)
8y2-(4x2-y)-(3x2-8y2)
1
(x2+2xy-—x)-(5x2+8xy-3x)
5
11
(—xy+6y2-7)-(x2-—xy+2y2+6)
43
35
(xy+—y-—)-(xy+x+1)
44
(7y+3x+4z2)-(7y-8x+9z2)
(2k2+7k)-(2k2+8k+3)
(5a2-2a-8b)+(5a2-7a+b)
5x2-(x2-2x-4)+(8x-4)
7y2-(9x2-y)+(9x2-6y2)
1
(3x2-5xy-—x)-(x2-7xy+3x)
5
16
(—xy-7y2-5)+(x2+—xy-y2-9)
35
71
(xy+—y-—)+(xy+x-8)
67
(2y-6x-z2)-(3y-7x+8z2)
(8k2+4k)-(4k2+7k+6)
(6a2-5a-5b)-(9a2+4a-2b)
2x2-(3x2+6x-2)-(7x+7)
8y2-(4x2-y)+(5x2+2y2)
1
(4x2-xy-—x)+(6x2-9xy+6x)
8
12
(—xy+9y2-2)+(x2+—xy-2y2-6)
33
39
(xy+—y+—)+(xy+x+3)
48
(5y-9x+9z2)+(7y-2x+2z2)
(5k2-5k)+(3k2+6k-6)
(7a2-5a-4b)-(3a2-a-2b)
9x2+(6x2-7x+6)-(8x+4)
7y2+(x2-y)-(3x2-3y2)
1
(6x2+8xy-—x)+(5x2+7xy+x)
4
46
(—xy+5y2+3)-(x2-—xy-y2-5)
35
15
(xy+—y+—)-(xy-x-3)
46
(y+7x+8z2)-(y-9x-5z2)
(4k2-7k)+(7k2-2k-5)
(4a2-7a-9b)-(6a2+9a+9b)
5x2-(x2-9x-8)+(6x+3)
2y2-(5x2+y)+(x2+5y2)