七年级数学下册计算题大全84.docx
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七年级数学下册计算题大全84
2
(2x2+6xy-—x)+(5x2-xy+3x)
3
16
(—xy+9y2-8)+(x2-—xy-6y2+6)
45
11
(xy-—y-—)+(xy+x+3)
36
(5y+2x-8z2)+(2y+5x+z2)
(4k2+3k)-(4k2+k-7)
(5a2-9a+6b)-(4a2-7a-3b)
5x2-(7x2+2x-5)-(6x+3)
9y2-(7x2-y)+(7x2-3y2)
5
(8x2-6xy+—x)+(7x2+2xy+5x)
4
11
(—xy-5y2-8)+(x2-—xy+9y2-9)
64
15
(xy+—y+—)-(xy+x-6)
36
(3y-2x+5z2)-(9y+5x+z2)
(3k2-2k)+(5k2+5k-2)
(4a2+5a-b)-(7a2+7a-9b)
6x2+(9x2-3x-6)-(3x-2)
y2+(7x2-y)-(x2+8y2)
1
(7x2+9xy-—x)+(6x2+2xy+9x)
7
11
(—xy+5y2-7)-(x2-—xy+3y2+9)
88
86
(xy+—y-—)-(xy-x+3)
75
(6y+5x-6z2)-(2y-6x-5z2)
(k2-9k)+(6k2-k-3)
(8a2-4a+6b)-(6a2+7a-7b)
4x2-(4x2-8x+2)-(9x+7)
9y2-(9x2-y)-(6x2+9y2)
9
(8x2-4xy+—x)+(6x2-6xy-2x)
8
31
(—xy-4y2+3)-(x2-—xy-9y2-1)
44
51
(xy+—y+—)-(xy+x+4)
67
(6y-5x+8z2)-(9y-2x-6z2)
(k2+3k)-(7k2-k+2)
(4a2+7a+3b)-(a2+7a+3b)
4x2+(4x2-7x-8)-(x-6)
9y2+(7x2+y)+(7x2+6y2)
1
(3x2-3xy+—x)+(2x2-7xy-9x)
7
12
(—xy+3y2-7)+(x2+—xy+5y2-6)
63
41
(xy+—y+—)-(xy-x+6)
56
(7y+6x-3z2)+(3y-6x+8z2)
(5k2+4k)-(4k2-k+1)
(5a2+7a+3b)+(8a2+a+7b)
x2-(8x2+3x+8)-(8x-7)
y2+(5x2+y)+(5x2+y2)
1
(9x2-2xy-—x)+(7x2-9xy+4x)
7
77
(—xy+3y2-3)-(x2-—xy+2y2+1)
66
14
(xy-—y+—)+(xy+x-2)
85
(8y-7x+z2)-(9y-x+8z2)
(4k2-8k)-(3k2-8k-1)
(5a2+8a+8b)-(a2+8a-5b)
8x2-(7x2-7x-1)+(8x+8)
5y2-(8x2+y)+(5x2+8y2)
7
(7x2+6xy+—x)-(7x2-3xy+3x)
6
17
(—xy-9y2-3)+(x2-—xy+3y2-5)
88
61
(xy-—y+—)+(xy-x+8)
76
(2y-3x-z2)-(2y+3x-5z2)
(2k2+3k)+(2k2+6k+1)
(a2-a-3b)-(9a2+a+6b)
4x2-(8x2-3x-7)+(8x-2)
5y2-(7x2+y)-(4x2+8y2)
3
(6x2+3xy-—x)+(7x2+4xy+5x)
4
79
(—xy+2y2+6)-(x2-—xy-9y2-8)
68
41
(xy-—y+—)+(xy+x+4)
36
(y-8x-3z2)-(3y-7x+7z2)
(7k2-k)-(4k2+2k+8)
(9a2-2a-9b)+(a2+7a+b)
3x2+(9x2+5x-6)-(8x-5)
6y2+(6x2-y)-(2x2-5y2)
1
(5x2+4xy-—x)-(8x2-6xy-6x)
5
91
(—xy+3y2-1)-(x2+—xy-3y2+5)
86
15
(xy+—y-—)-(xy+x-5)
54
(y-2x-6z2)+(5y-7x+7z2)
(2k2+5k)+(3k2+9k-7)
(a2-7a+3b)-(7a2+6a+8b)
7x2+(5x2-4x-1)-(5x+9)
2y2-(9x2-y)-(x2+2y2)
1
(8x2+6xy-—x)+(4x2+2xy+9x)
5
47
(—xy+5y2+8)+(x2+—xy+y2+7)
58
84
(xy+—y-—)-(xy-x-1)
73
(4y+2x-6z2)-(5y-8x+2z2)
(7k2+5k)+(8k2-9k+5)
(9a2+a-b)-(5a2-2a-7b)
5x2-(7x2-2x+5)+(7x-5)
y2+(8x2-y)-(6x2-8y2)
1
(3x2-6xy-—x)+(9x2+xy-9x)
4
11
(—xy-y2+2)+(x2+—xy+5y2-4)
77
65
(xy+—y+—)-(xy+x-8)
54
(3y+4x+8z2)-(y-4x-8z2)
(9k2-k)+(2k2+6k-4)
(6a2-7a+5b)-(7a2-4a-8b)
7x2+(x2+3x+6)+(9x-2)
y2+(9x2+y)-(9x2-7y2)
1
(6x2-4xy+—x)-(x2+xy+5x)
6
14
(—xy-3y2-7)-(x2-—xy-y2+7)
73
11
(xy+—y-—)+(xy-x+6)
75
(2y-8x+3z2)+(2y+6x+z2)
(8k2-9k)-(9k2-5k+9)
(4a2-4a-5b)+(2a2-4a-4b)
9x2-(7x2-x-1)+(4x+3)
3y2+(8x2+y)+(6x2-8y2)
1
(3x2-5xy-—x)+(9x2-8xy-6x)
7
65
(—xy-4y2-5)-(x2+—xy+9y2+5)
54
14
(xy-—y+—)-(xy+x+7)
83
(9y-9x+8z2)-(5y+6x-6z2)