七年级数学下册计算题大全230.docx
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七年级数学下册计算题大全230
1
(4x2-5xy+—x)-(3x2+6xy-2x)
5
11
(—xy+6y2+5)+(x2+—xy+y2-9)
77
41
(xy-—y-—)-(xy+x-6)
35
(9y+7x+8z2)-(2y+3x+6z2)
(8k2+2k)+(4k2+2k-5)
(a2+2a+5b)-(7a2-9a+3b)
8x2-(6x2+7x-2)-(3x+8)
5y2-(7x2+y)+(8x2+8y2)
6
(2x2-9xy+—x)-(8x2-7xy-6x)
7
54
(—xy-2y2+8)-(x2+—xy-2y2+8)
43
52
(xy+—y-—)-(xy-x+6)
63
(2y-8x-2z2)-(3y+3x-4z2)
(9k2+7k)+(3k2+9k+4)
(8a2+6a+5b)-(a2-6a+9b)
6x2+(x2-4x-2)+(3x+9)
8y2-(6x2-y)+(5x2-9y2)
1
(6x2+3xy+—x)+(9x2-7xy+6x)
5
21
(—xy+5y2+5)+(x2-—xy+y2+2)
35
51
(xy-—y-—)-(xy-x-3)
65
(9y+3x-4z2)+(3y+6x-6z2)
(7k2+k)+(6k2+7k+2)
(2a2-2a+9b)-(6a2-4a+5b)
9x2+(8x2-8x-6)-(5x-4)
y2+(7x2-y)+(9x2+2y2)
2
(5x2-7xy+—x)-(8x2-3xy-8x)
3
74
(—xy-7y2-4)-(x2-—xy-9y2-6)
65
37
(xy-—y-—)-(xy+x-3)
48
(6y+2x+z2)-(8y+7x+5z2)
(8k2-2k)+(5k2-9k-2)
(8a2+8a+9b)-(4a2-9a+3b)
6x2-(x2+8x+5)-(3x+2)
2y2+(x2+y)-(5x2+9y2)
1
(5x2+3xy+—x)+(9x2-7xy-7x)
8
15
(—xy+2y2-7)-(x2+—xy-3y2-9)
84
41
(xy+—y-—)-(xy-x-3)
53
(3y-9x-8z2)+(9y-2x+z2)
(8k2+2k)+(4k2+k-9)
(4a2-6a-2b)-(3a2+9a-3b)
3x2-(4x2-8x-1)-(6x-4)
y2-(7x2+y)+(7x2+4y2)
1
(7x2+3xy+—x)-(8x2-xy+7x)
6
51
(—xy+3y2+2)-(x2+—xy-6y2+3)
43
11
(xy-—y+—)-(xy+x+1)
37
(4y+6x+6z2)+(5y+8x+8z2)
(6k2-6k)+(3k2-9k+7)
(8a2-2a-4b)+(7a2+6a-5b)
6x2+(7x2+2x-5)+(4x+4)
6y2+(6x2-y)-(3x2-4y2)
7
(2x2-9xy-—x)+(5x2-5xy+6x)
6
11
(—xy-y2-1)-(x2+—xy-6y2+4)
57
26
(xy+—y-—)+(xy-x-2)
37
(3y-x+2z2)-(3y-4x-2z2)
(9k2+2k)+(k2+2k+9)
(2a2-8a+3b)-(6a2-2a+9b)
2x2-(2x2+9x-2)-(4x-7)
2y2-(6x2+y)+(6x2+2y2)
7
(9x2+3xy+—x)-(x2-4xy-3x)
6
41
(—xy+y2-5)-(x2-—xy-y2-4)
34
76
(xy-—y+—)+(xy-x-2)
87
(2y-2x+2z2)-(y+9x+2z2)
(2k2+9k)-(5k2+5k+5)
(6a2+6a-3b)+(a2-3a+b)
7x2+(9x2+x-5)+(9x+4)
6y2-(3x2+y)-(9x2+8y2)
4
(6x2+3xy+—x)+(3x2+xy+8x)
5
11
(—xy-8y2+9)+(x2+—xy+9y2+3)
54
18
(xy+—y+—)+(xy-x+7)
77
(7y-3x+6z2)+(8y-6x+8z2)
(6k2+6k)-(7k2-8k+3)
(a2+8a+4b)-(7a2+a+7b)
2x2-(3x2+5x+2)-(7x-8)
5y2+(5x2+y)-(3x2+9y2)
1
(6x2-5xy-—x)+(9x2+5xy+9x)
6
35
(—xy-5y2+5)+(x2+—xy+6y2-2)
46
11
(xy+—y-—)-(xy-x+6)
68
(5y-8x+6z2)-(y-2x+8z2)
(9k2-4k)+(3k2-3k-5)
(3a2-a-5b)-(8a2-6a+3b)
6x2+(2x2-5x+4)-(5x+1)
7y2+(4x2-y)+(2x2+4y2)
1
(9x2+6xy-—x)+(x2+2xy+8x)
8
41
(—xy+4y2+4)-(x2-—xy+9y2-1)
38
74
(xy+—y-—)-(xy-x-7)
85
(2y-5x-8z2)+(6y-3x+4z2)
(k2-6k)+(4k2-7k-3)
(7a2-4a-9b)+(7a2-4a+9b)
7x2-(x2+6x+6)-(5x-2)
7y2-(5x2-y)+(9x2-y2)
1
(6x2-5xy-—x)+(6x2+7xy+5x)
5
17
(—xy+8y2-6)+(x2-—xy+8y2+2)
88
49
(xy+—y-—)-(xy+x-1)
58
(6y+3x-4z2)+(y+7x+9z2)
(9k2+5k)+(8k2-4k+6)
(9a2-a+5b)+(4a2+3a-4b)
7x2-(9x2-x+3)-(2x-4)
y2-(2x2+y)-(7x2-y2)
1
(6x2-2xy-—x)-(x2-5xy-7x)
4
14
(—xy+8y2+3)-(x2+—xy-y2-5)
85
67
(xy+—y+—)-(xy+x-5)
58
(8y-7x+4z2)-(5y+2x-5z2)