七年级数学下册计算题大全20.docx
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七年级数学下册计算题大全20
七年级,数学,下册,计,算题,大全,7x2+4xy+,-,6
(7x2+4xy+-x)-(5x2-8xy-x)
7
28
(-xy+7y2+5)+(x2--xy+4y2+1)
37
12
(xy+-y+-)-(xy+x+4)
33
(5y+5x-7z2)-(8y+7x-5z2)
(9k2+k)-(8k2-2k-1)
(9a2-8a+4b)+(7a2+2a+4b)
6x2-(5x2+8x-7)-(6x-7)
y2-(6x2+y)+(6x2+8y2)
1
(7x2-6xy+-x)-(8x2-6xy-4x)
4
95
(-xy-8y2+2)-(x2--xy-4y2-9)
84
74
(xy--y+-)+(xy-x-7)
83
(7y-8x+8z2)+(y-8x-6z2)
(7k2+3k)-(9k2-6k+9)
(9a2-4a+9b)+(9a2-9a-6b)
6x2-(4x2-9x-3)-(4x+2)
y2+(x2+y)-(6x2+6y2)
8
(9x2+5xy+-x)+(8x2+4xy-x)
7
11
(-xy+6y2+4)+(x2+-xy+7y2+1)
35
78
(xy+-y--)+(xy+x-7)
87
(3y-4x-5z2)-(4y-6x+9z2)
(2k2+6k)-(9k2+4k+5)
(8a2-5a+b)-(8a2-a+2b)
5x2-(9x2+x+3)-(3x+9)
4y2-(x2-y)-(3x2-2y2)
1
(3x2-6xy+-x)-(2x2-4xy-5x)
3
14
(-xy+9y2+2)-(x2--xy+4y2+7)
65
41
(xy--y--)+(xy-x-3)
37
(2y+8x-8z2)+(9y+7x-9z2)
(4k2-5k)-(4k2-5k+1)
(2a2-8a-8b)-(9a2-5a-9b)
7x2-(6x2-8x-3)+(x-3)
3y2+(x2+y)-(6x2+2y2)
8
(2x2+7xy+-x)-(8x2-9xy-8x)
7
15
(-xy+9y2-2)+(x2+-xy+3y2+6)
66
12
(xy--y+-)-(xy-x-9)
73
(3y+3x-8z2)-(8y-8x+3z2)
(2k2-3k)-(8k2+7k-8)
(4a2+2a+2b)-(2a2+5a-8b)
5x2+(5x2-2x+9)-(5x-1)
y2-(8x2-y)+(8x2-7y2)
5
(5x2+5xy--x)+(2x2-3xy+8x)
6
51
(-xy-9y2+3)+(x2--xy-2y2-2)
68
11
(xy+-y--)-(xy+x-7)
76
(5y-x-4z2)-(3y-2x+8z2)
(6k2+9k)+(2k2+6k-2)
(2a2+2a-3b)-(6a2-5a-6b)
x2+(6x2+6x-1)-(7x+8)
4y2-(8x2-y)+(x2-5y2)
5
(2x2+6xy--x)+(5x2-4xy-4x)
6
16
(-xy-y2+6)+(x2--xy-y2+2)
47
11
(xy--y+-)-(xy-x-9)
37
(4y-9x-6z2)+(5y+9x-8z2)
(5k2-k)-(6k2+7k-6)
(7a2-5a+b)+(5a2-4a+6b)
7x2+(6x2-8x-9)+(4x-3)
2y2+(6x2+y)+(7x2-5y2)
6
(4x2+8xy--x)-(x2-6xy-2x)
7
76
(-xy-y2-3)+(x2+-xy+8y2-6)
87
54
(xy--y+-)+(xy-x-6)
65
(2y-3x+5z2)+(4y+5x-9z2)
(8k2-2k)-(8k2-9k-8)
(a2-5a+6b)+(5a2-7a-9b)
9x2-(2x2-6x+4)+(3x+1)
6y2-(2x2+y)+(4x2-4y2)
1
(3x2-2xy+-x)+(5x2-7xy+4x)
4
11
(-xy-2y2-5)+(x2+-xy-4y2+5)
73
15
(xy+-y+-)+(xy+x-4)
44
(3y+x+3z2)-(y-5x-5z2)
(5k2-4k)-(2k2+4k+4)
(9a2+2a-4b)-(9a2+6a-7b)
3x2+(6x2-5x-1)-(5x-3)
7y2+(9x2+y)-(5x2-3y2)
1
(4x2+7xy--x)+(6x2+4xy+7x)
8
46
(-xy+9y2-1)-(x2--xy+7y2-8)
37
41
(xy--y--)+(xy-x-6)
34
(8y+3x+7z2)+(8y-7x+4z2)
(2k2-5k)+(2k2-9k-6)
(2a2+4a+6b)-(9a2+9a-5b)
2x2+(3x2+2x-3)-(x-7)
5y2+(x2-y)-(x2+8y2)
9
(8x2+2xy+-x)+(7x2+8xy-7x)
8
71
(-xy+6y2-7)-(x2--xy-2y2-7)
65
15
(xy+-y--)-(xy-x+3)
84
(5y+2x+3z2)+(3y-4x-z2)
(k2-3k)+(6k2-4k-4)
(2a2+7a-6b)+(a2+3a+4b)
6x2+(2x2+8x-4)+(9x-2)
5y2+(x2-y)-(6x2-9y2)
1
(4x2+9xy+-x)-(3x2+5xy+9x)
8
53
(-xy+5y2+4)-(x2--xy+2y2+7)
64
19
(xy--y+-)+(xy-x-6)
78
(3y+3x+8z2)-(6y+7x-9z2)
(3k2-9k)+(9k2+7k-6)
(9a2+7a-4b)-(5a2-9a+3b)
7x2-(7x2+9x-9)-(2x-2)
y2-(8x2+y)-(8x2+y2)
5
(4x2+3xy--x)-(4x2-4xy-x)
6
51
(-xy-3y2-7)-(x2--xy+6y2-2)
67
71
(xy--y--)-(xy+x+2)
88
(6y-9x-7z2)+(4y-2x+2z2)