七年级数学下册计算题大全24.docx
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七年级数学下册计算题大全24
4
(3x2+4xy-—x)+(5x2+3xy+2x)
5
15
(—xy+9y2+5)+(x2-—xy-3y2-8)
44
86
(xy-—y+—)+(xy-x+2)
77
(y+4x+6z2)-(2y+8x-2z2)
(4k2-9k)-(6k2-k+7)
(6a2+7a+2b)+(6a2+2a+6b)
3x2+(x2+8x-4)+(3x+1)
2y2+(8x2-y)-(5x2-7y2)
1
(5x2+7xy-—x)-(2x2+4xy+x)
7
13
(—xy-4y2-5)+(x2-—xy-4y2-2)
64
11
(xy+—y+—)-(xy+x+5)
38
(5y+6x-8z2)+(y+3x-2z2)
(6k2-6k)-(8k2-4k+9)
(8a2+4a-9b)-(8a2-3a+3b)
9x2+(6x2-5x+9)-(2x+5)
y2-(2x2+y)-(3x2-7y2)
7
(3x2+4xy-—x)+(2x2+6xy+8x)
6
52
(—xy-2y2-4)+(x2-—xy+6y2-7)
43
13
(xy+—y-—)-(xy-x+2)
74
(4y+6x+3z2)-(6y+x+6z2)
(k2-2k)-(k2+6k+1)
(4a2-6a-6b)-(9a2+4a+b)
9x2-(7x2+5x-1)-(6x-6)
4y2-(x2-y)-(9x2-8y2)
1
(8x2+4xy+—x)-(6x2-9xy+8x)
8
49
(—xy-7y2-2)-(x2+—xy-4y2+6)
58
13
(xy-—y+—)-(xy+x-4)
74
(7y+7x-8z2)-(3y+2x-9z2)
(9k2-2k)+(3k2-7k-3)
(5a2-7a+7b)+(5a2+2a-2b)
3x2+(4x2-7x-5)-(6x+7)
2y2+(8x2+y)-(6x2-4y2)
5
(3x2-7xy-—x)+(3x2-6xy+2x)
6
16
(—xy-8y2+1)+(x2+—xy-2y2+4)
75
55
(xy-—y+—)+(xy+x+1)
66
(6y+9x-4z2)-(2y-9x-9z2)
(4k2+k)+(2k2-k-9)
(8a2+7a+4b)+(9a2+3a+3b)
4x2-(7x2-4x+8)-(4x+8)
5y2+(3x2+y)+(8x2-5y2)
1
(7x2+8xy-—x)+(2x2+xy+4x)
5
79
(—xy+y2-2)-(x2+—xy-2y2-3)
88
11
(xy+—y-—)+(xy-x-1)
77
(2y-6x-9z2)-(3y-7x-6z2)
(6k2+8k)+(8k2+5k+4)
(8a2+5a+4b)-(a2-6a+3b)
3x2-(5x2+8x+2)-(9x-3)
4y2+(7x2+y)-(7x2+9y2)
1
(8x2-8xy-—x)+(8x2+8xy-6x)
4
11
(—xy+8y2-1)-(x2-—xy+y2+5)
83
42
(xy-—y+—)+(xy+x+8)
33
(8y+8x-5z2)+(8y+6x+4z2)
(5k2+8k)-(9k2-9k-7)
(6a2-7a-4b)+(7a2+6a+5b)
7x2+(9x2+4x-2)+(4x-1)
y2-(9x2-y)+(2x2-2y2)
4
(3x2-4xy-—x)-(7x2+6xy-9x)
3
15
(—xy-8y2-9)-(x2+—xy-3y2+7)
86
21
(xy+—y+—)-(xy+x+8)
33
(9y+7x+8z2)-(y+6x+2z2)
(5k2-2k)-(k2-6k-2)
(4a2+6a-4b)+(4a2-5a+5b)
x2+(7x2-8x+7)-(4x-3)
6y2+(x2+y)+(7x2+y2)
1
(8x2+xy+—x)-(8x2+6xy-x)
4
16
(—xy+6y2-8)-(x2+—xy-8y2-1)
57
19
(xy+—y+—)-(xy-x-9)
48
(7y+2x+7z2)-(y+x-8z2)
(8k2+2k)+(9k2-8k+9)
(5a2-9a-b)-(a2+a+7b)
8x2+(2x2-7x+1)+(7x+3)
9y2-(7x2-y)+(7x2+4y2)
1
(6x2-4xy+—x)+(5x2+xy+6x)
8
11
(—xy+4y2+3)-(x2+—xy-5y2+6)
37
16
(xy-—y-—)+(xy+x-6)
37
(9y-2x+z2)+(2y+6x+5z2)
(3k2-4k)+(6k2-6k-6)
(7a2+8a+b)+(a2+a-8b)
6x2-(7x2+8x-2)+(9x-4)
3y2+(x2+y)-(7x2-8y2)
1
(x2+xy+—x)-(4x2-8xy+5x)
6
41
(—xy+5y2-1)-(x2-—xy-8y2-5)
53
11
(xy+—y-—)+(xy-x+1)
86
(4y+3x+5z2)-(8y+6x-3z2)
(4k2+2k)+(7k2-2k-8)
(7a2+5a+2b)-(9a2+8a-b)
6x2+(3x2-2x+7)-(3x+5)
5y2+(3x2-y)-(4x2-4y2)
7
(2x2+xy+—x)+(5x2-xy-2x)
6
93
(—xy+8y2+2)+(x2-—xy+2y2+9)
84
17
(xy-—y-—)+(xy+x-6)
46
(4y+9x-2z2)+(5y-5x+4z2)
(3k2-k)+(6k2+7k+5)
(a2-5a-4b)+(4a2+7a-3b)
8x2+(4x2-6x+9)+(4x+1)
2y2-(8x2+y)+(6x2-y2)
1
(x2-6xy+—x)+(7x2-9xy+6x)
4
31
(—xy-y2+9)-(x2+—xy+8y2+4)
45
11
(xy-—y-—)-(xy-x-4)
57
(9y+8x+2z2)+(2y-x-8z2)