七年级数学下册计算题大全138.docx
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七年级数学下册计算题大全138
9
(7x2+2xy+—x)-(4x2+8xy-3x)
8
71
(—xy+3y2+4)-(x2-—xy+9y2+7)
84
66
(xy-—y+—)-(xy+x-5)
77
(7y+3x+9z2)+(8y-8x-9z2)
(2k2+2k)+(7k2-2k-9)
(6a2-3a+5b)+(2a2-4a-3b)
9x2-(8x2+4x-1)-(5x+5)
3y2-(7x2+y)+(5x2-2y2)
1
(5x2+4xy+—x)+(7x2+5xy+9x)
6
21
(—xy-9y2-4)+(x2+—xy+2y2-1)
36
18
(xy-—y+—)+(xy+x-3)
47
(3y+8x+4z2)+(y-6x+5z2)
(8k2-9k)+(4k2+5k-8)
(a2+7a+6b)-(9a2-6a-5b)
x2+(6x2-9x+2)+(6x-2)
2y2+(x2+y)+(x2+y2)
1
(5x2-2xy+—x)+(3x2-8xy+4x)
3
12
(—xy-8y2-5)-(x2-—xy+9y2-2)
73
18
(xy+—y-—)-(xy+x-6)
77
(9y+7x+4z2)+(5y-8x+6z2)
(7k2+6k)-(8k2+8k-6)
(6a2-6a+8b)+(a2+7a-5b)
5x2-(2x2+2x+1)+(9x-4)
6y2+(8x2+y)+(4x2+3y2)
6
(9x2-2xy-—x)+(9x2-7xy+5x)
5
41
(—xy-3y2+7)+(x2-—xy+8y2-7)
57
96
(xy-—y+—)-(xy+x+5)
85
(2y+5x+5z2)-(7y+6x-z2)
(k2+7k)+(5k2-7k-3)
(7a2-8a-5b)-(3a2+4a-2b)
4x2-(x2+9x-2)-(7x+6)
2y2+(3x2+y)+(7x2-9y2)
5
(x2-xy+—x)-(6x2+3xy-3x)
4
19
(—xy+2y2-2)+(x2-—xy+3y2+1)
58
54
(xy+—y+—)-(xy-x+1)
63
(3y-6x+8z2)-(4y-4x-9z2)
(2k2-6k)-(k2-4k-1)
(2a2-9a+3b)-(a2+3a+2b)
5x2-(7x2+9x-6)-(4x+1)
2y2+(x2-y)-(4x2+y2)
1
(3x2+7xy-—x)+(6x2-xy+2x)
3
61
(—xy-7y2+5)+(x2-—xy+8y2-2)
57
17
(xy-—y+—)-(xy-x+4)
66
(2y+9x-4z2)+(3y-3x-4z2)
(6k2+9k)-(5k2+6k-2)
(9a2+2a-5b)+(3a2+6a-4b)
9x2-(3x2-5x+5)-(3x-9)
4y2-(2x2+y)+(2x2-6y2)
9
(6x2+5xy+—x)-(9x2-3xy-4x)
8
31
(—xy+4y2+7)+(x2-—xy+6y2+1)
46
67
(xy-—y-—)-(xy-x-2)
76
(2y-7x+z2)+(4y-9x-6z2)
(9k2+5k)-(8k2-9k+5)
(7a2+5a+7b)+(a2+8a-3b)
4x2-(6x2-2x+1)+(5x-8)
y2+(x2+y)+(9x2+4y2)
1
(9x2-4xy-—x)+(3x2-8xy+5x)
4
13
(—xy+6y2-8)-(x2+—xy-4y2+3)
54
65
(xy-—y-—)+(xy+x-5)
56
(y+x-2z2)-(3y+8x+7z2)
(k2-2k)+(4k2-8k-5)
(3a2+7a-5b)-(2a2+5a+5b)
9x2-(9x2-9x-3)-(x-3)
9y2-(7x2+y)-(3x2-5y2)
5
(7x2-5xy+—x)-(x2-5xy-x)
4
66
(—xy-3y2+9)+(x2+—xy-5y2+2)
57
16
(xy+—y-—)-(xy-x-1)
87
(2y-8x-8z2)+(6y-6x-6z2)
(9k2+k)+(2k2-4k+8)
(8a2+2a+2b)-(a2+4a-6b)
5x2+(3x2+5x+6)+(8x+2)
3y2-(6x2+y)+(7x2+2y2)
5
(x2+4xy+—x)-(4x2+2xy+3x)
6
13
(—xy-y2-1)+(x2-—xy-8y2+7)
54
76
(xy+—y+—)-(xy-x+4)
87
(2y-9x+3z2)-(y+3x+3z2)
(6k2+2k)-(3k2+9k-3)
(9a2-7a-6b)-(9a2-2a-7b)
2x2+(7x2+7x+1)+(9x-4)
9y2-(6x2-y)+(3x2-8y2)
1
(4x2-5xy+—x)-(3x2-8xy-3x)
8
14
(—xy-2y2-2)+(x2-—xy-9y2-2)
45
15
(xy-—y-—)-(xy-x-9)
56
(3y+8x-7z2)-(3y-6x-2z2)
(3k2-7k)-(8k2-8k+7)
(7a2-3a+b)+(a2+3a-5b)
8x2+(6x2-3x+7)+(x-4)
7y2-(9x2-y)+(2x2+3y2)
7
(7x2-5xy-—x)-(7x2+3xy-4x)
6
61
(—xy-5y2+8)-(x2+—xy-7y2+6)
73
12
(xy-—y-—)-(xy+x+5)
33
(4y+8x+z2)-(7y-7x-7z2)
(8k2-6k)-(5k2-k-5)
(8a2+3a-7b)-(9a2-a-9b)
5x2+(9x2+x-5)+(3x+5)
4y2-(2x2+y)+(4x2+4y2)
6
(6x2+8xy+—x)-(9x2+xy+3x)
5
11
(—xy-8y2+8)+(x2+—xy+2y2+1)
88
66
(xy+—y+—)-(xy-x-1)
57
(4y-3x+5z2)+(4y-2x+6z2)